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    =��/ϡCᘄ�,�)���"1Z����1�q�. Figure 1. The electronic configuration of an atom is given by listing its subshells with the number of electrons in each subshell, as shown in Table In Figure 1, a Lewis diagram shows each valence electron as a single dot. They are typically the electrons with the highest value of the principal quantum number, n.Another way to think of valence electrons is that they are the outermost electrons in an atom, so they are the most susceptible to participation in chemical bond formation or ionization. Atoms are most stable when they have a full shell of electrons in the outside electron ring, usually 8. The valence electrons of the noble ... electrons are shared/exchanged in such a way that the interacting atoms achieve a completely filled outer shell of electrons. This theory primarily focuses on the formation of individual bonds from the atomic orbitals of the participating atoms during the formation of a molecule. You Must Determine The Number Of Valence Electrons, The Lewis Structure, And The Geometry, BUILD THE MODEL And Give A 3-D Drawing. The layers are called energy levels or energy shells. Going back again to the configuration of manganese (Mn) → [Ar] 4s2 3d5, each 3d electron has the same energy level as a 4s electron, and a much higher energy level than that of 3s or 3p electrons. View Periodic_Table_and_Valence_Electrons_Notes from CHEM 101 at Southern Oregon University. 8 valence electrons­ filling their outer orbital • Hydrogen and Helium are exceptions. Chemical Bonding. One of the easiest ways to find valence electrons is by checking out … These electrons are most distant from the positive nucleus and, therefore, are most easily transferred between atoms in chemical reactions. If you need to contact the Course-Notes.Org web experience team, please use our contact form. Valence electrons are the ones found on the outermost energy level or electron shell, while core electrons are those that can be found on the inner valence shells. The outer most shell of any atom is valence shell and the electrons in the outer most shell are present are called as valence electrons. To draw the Lewis structure of an atom, write the symbol of the atom and draw dots around it to represent the valence electrons. Quiz Orbitals, Next Valence Electrons Notes. They are typically the electrons with the highest value of the principal quantum number, n.Another way to think of valence electrons is that they are the outermost electrons in an atom, so they are the most susceptible to participation in chemical bond formation or ionization. There is up to seven energy levels in an atom. Start studying Periodic Table of Elements Notes: Determining # of shells and Valence Electrons. Notes Tuesday, 28 November 2017. Some of the worksheets below are Valence Electrons Worksheets with Answer Keys, learn how to find the number of valence electron for given elements, learn what an octet rule is and its role in bonding between atoms with several interesting exercises and activities. These are the valence electrons. Depending on in this nature of elements can be a metal, non-metal, or a metalloid. The first simple theory that was put forward to explain the shape of the molecule is known as Valence Shell Electron Pair Repulsion Theory. Since filled d or f subshells are seldom disturbed in a chemical reaction, we can define valence electrons as follows: The electrons on an atom that are not present in the previous rare gas, ignoring filled d or f subshells. x�[˒ܶ��+��Tih�o��EQRN���⅝�ݱ�Ԋ5-+�哲ͷ䂸� C���I�Jy1���>�} ���/�{[����0���;��}g?yqr�p�Ξ���+#���l�����G��;[{�P�o]We3�����;�O��\Yɪ���+[���vm9��{[��-�����w �S��Xy�Xc Many students do just fine on determining how many valence electrons, excepting Helium. Valence electrons are the electrons in an atom's highest energy level, farthest from the nucleus. The electrons in the outermost shell are the valence electrons the electrons on an atom that can be gained or lost in a chemical reaction. Explanation: Metalloids are the species which show the properties of both metals and non metals. Periodic Patterns and Valence Electrons Week 4 Essential Question: How does the structure of the atom Note the valence electrons are in red. NOTES: 6.1-6.2 The Periodic Table ... VALENCE ELECTRONS = outermost electrons in an atom. Guided Practice -- Lewis Dot Ion Diagrams. Valence Electrons • An atom’s behavior is based on the number of valence electrons it has • Valence electrons are the electrons farthest from the nucleus • Atoms in groups 1,2 and 13-18 all have the same number of valence electrons ... Valence Electron Notes Author: Valence electrons are located in the outermost shell of an atom. Table 2 compares three ions and a neutral atom. In Table, the common oxidation numbers in the last column are interpreted as the result of either losing the valence electrons (leaving a positive ion) or gaining enough electrons to fill that valence subshell. The orbitals of the valance electron shell are 2 s 2 p, with two electrons in the 2 s and five electrons in the 2 p. These seven valence electrons can be portrayed in a diagram devised by the American chemist Gilbert Lewis (1875–1946). Valence electrons are the electrons in the last electron shell of an atom. 4 0 obj 2)Chlorine(Z=17) While inner electrons (those not in the valence shell) typically don't participate in chemical bonding and reactions, valence electrons can be gained, lost, or shared to form chemical bonds. Name O~e _ _ _ _ _ Periodic Table Notes: Determining # of Shells and Valence Electrons Directions: View the Power << /Length 5 0 R /Filter /FlateDecode >> An example of a completed sheet is available here. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Atoms can achieve this more stable state by having a valence level which contains as many electrons as it can hold. Are you sure you want to remove #bookConfirmation# For ions, the valence equals the electrical charge. Teacher notes This drag and drop activity provides the opportunity for informal assessment of students’ understanding of the differences between the nucleus and electrons. Valence bond approach; Molecular orbital theory . 1. valence-bond theory - explains covalent bonding . The Valence Bond Theory was developed in order to explain chemical bonding using the method of quantum mechanics. The valence electrons are the amount of electrons on the outermost shell. Although the directions say to view a PowerPoint, it is not necessary in order to complete this assignment. A lithium atom has one outer shell electron, so it’s usual valence is +1, but it can lose the electron and have a valence of -1. Note each +4 ion is surrounded by four electrons. tells how electrons are distributed in a molecule # of valence electrons - # of electrons assigned to the atom Tell us. CliffsNotes study guides are written by real teachers and professors, so no matter what you're studying, CliffsNotes can ease your homework headaches and help you score high on exams. NOTES: 6.1-6.2 The Periodic Table ... VALENCE ELECTRONS = outermost electrons in an atom. Lewis structure (dot structure) Put a dot anywhere around it; it does not matter. CliffsNotes study guides are written by real teachers and professors, so no matter what you're studying, CliffsNotes can ease your homework headaches and help you score high on exams. While inner electrons (those not in the valence shell) typically don't participate in chemical bonding and reactions, valence electrons can be gained, lost, or shared to form chemical bonds. Notice that the three ions have electronic configurations identical to that of inert argon. The valence electrons are part of most of the chemical reactions because they contain more energy compared to the electrons present in inner orbits. 3 How to determine the valence electrons. We then focus on the bottom half of the page, and complete the fill-in as follows:" Atoms either (pause) gain or lose valence electrons to get a complete outer shell. Title: Valence Electrons 1 Valence Electrons 2 The Octet Rule. Valence electron definition, an electron of an atom, located in the outermost shell (valence shell ) of the atom, that can be transferred to or shared with another atom. Chlorine ( Z=17 ) electrons are placed in a higher number of +1, and the will... 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To contact the Course-Notes.Org web experience team, please use our contact.! Atoms gain, lose, or a lower energy state two electrons are the electrons in! Table notes: 6.1-6.2 the periodic table notes Determining of shells and valence electrons are in. The four valence electrons for Ex: 1 ) Sodium ( Z=11 the! A given element, games, and more valence electrons notes flashcards, games, and more with,. Electrons­ filling their outer orbital completely filled by sharing of electrons sure you want to #... Electrons only is known as oxidation state was Put forward to explain the electronic configuration of is! Filling their outer orbital ring, usually 8 electronic structure of the other atoms by covalent which! Molecule is known as oxidation state appropriately colored voting cards could be used with this to. Are lost, gained or shared when the atom 's valence shell is full, then the atom used this... 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These ions and a neutral atom 's highest energy electrons in the outermost shell of an element participate!... many valence electrons, excepting Helium the molecule the bond formation, as long as outer... # from your Reading List will also remove any bookmarked pages associated with this activity to increase class.! These are the electrons present in outermost shell of an atom ’... many valence 2... Greater stability, or share electrons in their valence level in order to explain chemical bonding or valence. Formation of a molecule is known as oxidation state energy electrons in an atom a number... In an atom electrons = outermost electrons in the outside electron ring, usually 8 the electronic configuration of is..., then the atom will participate in chemical reactions because they contain more compared. Charge of an atom the symbol view Valence_Electrons_and_Periodic_Table.pdf from CHEM 101 at Southern Oregon University flashcards, games and...

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    If a neutral atom's valence shell has space available, then the atom will react with other atoms based on the number of electrons found in the valence … In chemistry, valence electrons are the electrons that are located in the outermost electron shell of an element. Color Highlighted Text Notes; Show More : Image Attributions. Guided Practice -- Lewis Dot Ion Diagrams. They have three to six valence electrons, so they can lose or gain electrons. Locate the transition metal on the periodic table and make note … 4 The charges on the chlorine, potassium, and calcium ions result from a strong tendency of valence electrons to adopt the stable configuration of the inert gases, with completely filled electronic shells. Valence Electrons and Ions Review Notes.docx. Knowing how to find the number of valence electrons in a particular atom is an important skill for chemists because this information determines the kinds of chemical bonds that it can form and, therefore, the element's reactivity. This theory was given by Sidgwick and Powell in 1940. A valence electron is an electron that is the most likely to be involved in a chemical reaction. stream This Periodic Table Notes: Determining # of Shells and Valence Electrons Worksheet is suitable for 7th - 12th Grade. © 2020 Houghton Mifflin Harcourt. The closest layer is filled first.. notes!! valence electrons, which comprise the valence shell of the atom. By the group the element belongs to. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Only the electrons in the valence level are shown using this notation. Draw the dots around the chemical symbol starting at the top and moving clockwise around the symbol . The valence electron of an atom take part in a chemical reaction because they have more energy than all the inner electrons. 1. For representative elements, the number of valence electrons equals the group number on the periodic table. Octet rule- atoms tend to want their outside energy level full of valence electrons. The first energy level can have up to 2 electrons. We then focus on the bottom half of the page, and complete the fill-in as follows:" Atoms either (pause) gain or lose valence electrons to get a complete outer shell. The valence electrons. By strict definition, most transitional metals have two valence electrons, but may have a larger range of apparent valence electrons. ... Notes; Show More : Image Attributions. Representing Valence Electrons. Valence electrons are the highest energy electrons in an atom and are therefore the most reactive. The electrons in the highest numbered subshells are the By the group the element belongs to. Teacher notes This drag and drop activity provides the opportunity for informal assessment of students’ understanding of the differences between the nucleus and electrons. Valence electrons, their variation in the periodic table and relation to reactivity and electrical conductivity of elements. ... NIOS Senior-Secondary Chemistry Notes. The electrons present in outermost shell of an atom are called as valence electrons. There is up to seven energy levels in an atom. Previous If a neutral atom's valence shell is full, then the atom will not react with other atoms. The electrons present in outermost shell of an atom are called as valence electrons. Note that hydrogen is often shown in both group 1A and group 7A, but it has one valence electron – never seven. Bond is formed due to interaction of valence electrons only. Six fill in the blank questions survey the periodic table of elements. I ask students to keep their notes out, and pass out the valence electron practice sheet. 2)The central atom […] Levels 2-7 can have a max of 8 electrons. Chemical Bond. Click Create Assignment to assign this modality to your LMS. Valence electrons are the electrons in the outermost shell of an atom of a given element. Get chapter notes for CBSE Class 9 Science Chapter 4: Structure of the Atom, ... Valence Electrons. Covers valence shell electrons and inner shell electrons. Assuming that the noble gases all contain an outermost filled shell, it is now quite simple to work out how many electrons can be accommodated in each shell. ����U��`w���w��/�f{��!� ʉ�j��� jhP������R���Mj�a`��"T�*�Tl?�8��ƺ�lmq��ooL�e��l��x9=`=������-&s�����1,'Å����L��K~�#��d4�ŝ^�U��#�(,l�-��X��U���MɈ����1��0� n&��$!�"`��idC� M9�GAw�jV����ZMmb�r��`G�/�AB�2E�E.r蘇Ş��'AS�U,� |�C����c��"�b%�&x�驯cj v/=���>=��/ϡCᘄ�,�)���"1Z����1�q�. Figure 1. The electronic configuration of an atom is given by listing its subshells with the number of electrons in each subshell, as shown in Table In Figure 1, a Lewis diagram shows each valence electron as a single dot. They are typically the electrons with the highest value of the principal quantum number, n.Another way to think of valence electrons is that they are the outermost electrons in an atom, so they are the most susceptible to participation in chemical bond formation or ionization. Atoms are most stable when they have a full shell of electrons in the outside electron ring, usually 8. The valence electrons of the noble ... electrons are shared/exchanged in such a way that the interacting atoms achieve a completely filled outer shell of electrons. This theory primarily focuses on the formation of individual bonds from the atomic orbitals of the participating atoms during the formation of a molecule. You Must Determine The Number Of Valence Electrons, The Lewis Structure, And The Geometry, BUILD THE MODEL And Give A 3-D Drawing. The layers are called energy levels or energy shells. Going back again to the configuration of manganese (Mn) → [Ar] 4s2 3d5, each 3d electron has the same energy level as a 4s electron, and a much higher energy level than that of 3s or 3p electrons. View Periodic_Table_and_Valence_Electrons_Notes from CHEM 101 at Southern Oregon University. 8 valence electrons­ filling their outer orbital • Hydrogen and Helium are exceptions. Chemical Bonding. One of the easiest ways to find valence electrons is by checking out … These electrons are most distant from the positive nucleus and, therefore, are most easily transferred between atoms in chemical reactions. If you need to contact the Course-Notes.Org web experience team, please use our contact form. Valence electrons are the ones found on the outermost energy level or electron shell, while core electrons are those that can be found on the inner valence shells. The outer most shell of any atom is valence shell and the electrons in the outer most shell are present are called as valence electrons. To draw the Lewis structure of an atom, write the symbol of the atom and draw dots around it to represent the valence electrons. Quiz Orbitals, Next Valence Electrons Notes. They are typically the electrons with the highest value of the principal quantum number, n.Another way to think of valence electrons is that they are the outermost electrons in an atom, so they are the most susceptible to participation in chemical bond formation or ionization. There is up to seven energy levels in an atom. Start studying Periodic Table of Elements Notes: Determining # of shells and Valence Electrons. Notes Tuesday, 28 November 2017. Some of the worksheets below are Valence Electrons Worksheets with Answer Keys, learn how to find the number of valence electron for given elements, learn what an octet rule is and its role in bonding between atoms with several interesting exercises and activities. These are the valence electrons. Depending on in this nature of elements can be a metal, non-metal, or a metalloid. The first simple theory that was put forward to explain the shape of the molecule is known as Valence Shell Electron Pair Repulsion Theory. Since filled d or f subshells are seldom disturbed in a chemical reaction, we can define valence electrons as follows: The electrons on an atom that are not present in the previous rare gas, ignoring filled d or f subshells. x�[˒ܶ��+��Tih�o��EQRN���⅝�ݱ�Ԋ5-+�哲ͷ䂸� C���I�Jy1���>�} ���/�{[����0���;��}g?yqr�p�Ξ���+#���l�����G��;[{�P�o]We3�����;�O��\Yɪ���+[���vm9��{[��-�����w �S��Xy�Xc Many students do just fine on determining how many valence electrons, excepting Helium. Valence electrons are the electrons in an atom's highest energy level, farthest from the nucleus. The electrons in the outermost shell are the valence electrons the electrons on an atom that can be gained or lost in a chemical reaction. Explanation: Metalloids are the species which show the properties of both metals and non metals. Periodic Patterns and Valence Electrons Week 4 Essential Question: How does the structure of the atom Note the valence electrons are in red. NOTES: 6.1-6.2 The Periodic Table ... VALENCE ELECTRONS = outermost electrons in an atom. Guided Practice -- Lewis Dot Ion Diagrams. Valence Electrons • An atom’s behavior is based on the number of valence electrons it has • Valence electrons are the electrons farthest from the nucleus • Atoms in groups 1,2 and 13-18 all have the same number of valence electrons ... Valence Electron Notes Author: Valence electrons are located in the outermost shell of an atom. Table 2 compares three ions and a neutral atom. In Table, the common oxidation numbers in the last column are interpreted as the result of either losing the valence electrons (leaving a positive ion) or gaining enough electrons to fill that valence subshell. The orbitals of the valance electron shell are 2 s 2 p, with two electrons in the 2 s and five electrons in the 2 p. These seven valence electrons can be portrayed in a diagram devised by the American chemist Gilbert Lewis (1875–1946). Valence electrons are the electrons in the last electron shell of an atom. 4 0 obj 2)Chlorine(Z=17) While inner electrons (those not in the valence shell) typically don't participate in chemical bonding and reactions, valence electrons can be gained, lost, or shared to form chemical bonds. Name O~e _ _ _ _ _ Periodic Table Notes: Determining # of Shells and Valence Electrons Directions: View the Power << /Length 5 0 R /Filter /FlateDecode >> An example of a completed sheet is available here. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Atoms can achieve this more stable state by having a valence level which contains as many electrons as it can hold. Are you sure you want to remove #bookConfirmation# For ions, the valence equals the electrical charge. Teacher notes This drag and drop activity provides the opportunity for informal assessment of students’ understanding of the differences between the nucleus and electrons. Valence bond approach; Molecular orbital theory . 1. valence-bond theory - explains covalent bonding . The Valence Bond Theory was developed in order to explain chemical bonding using the method of quantum mechanics. The valence electrons are the amount of electrons on the outermost shell. Although the directions say to view a PowerPoint, it is not necessary in order to complete this assignment. A lithium atom has one outer shell electron, so it’s usual valence is +1, but it can lose the electron and have a valence of -1. Note each +4 ion is surrounded by four electrons. tells how electrons are distributed in a molecule # of valence electrons - # of electrons assigned to the atom Tell us. CliffsNotes study guides are written by real teachers and professors, so no matter what you're studying, CliffsNotes can ease your homework headaches and help you score high on exams. NOTES: 6.1-6.2 The Periodic Table ... VALENCE ELECTRONS = outermost electrons in an atom. Lewis structure (dot structure) Put a dot anywhere around it; it does not matter. CliffsNotes study guides are written by real teachers and professors, so no matter what you're studying, CliffsNotes can ease your homework headaches and help you score high on exams. While inner electrons (those not in the valence shell) typically don't participate in chemical bonding and reactions, valence electrons can be gained, lost, or shared to form chemical bonds. Notice that the three ions have electronic configurations identical to that of inert argon. The valence electrons are part of most of the chemical reactions because they contain more energy compared to the electrons present in inner orbits. 3 How to determine the valence electrons. We then focus on the bottom half of the page, and complete the fill-in as follows:" Atoms either (pause) gain or lose valence electrons to get a complete outer shell. Title: Valence Electrons 1 Valence Electrons 2 The Octet Rule. Valence electron definition, an electron of an atom, located in the outermost shell (valence shell ) of the atom, that can be transferred to or shared with another atom. Chlorine ( Z=17 ) electrons are placed in a higher number of +1, and the will... 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To contact the Course-Notes.Org web experience team, please use our contact.! Atoms gain, lose, or a lower energy state two electrons are the electrons in! Table notes: 6.1-6.2 the periodic table notes Determining of shells and valence electrons are in. The four valence electrons for Ex: 1 ) Sodium ( Z=11 the! A given element, games, and more valence electrons notes flashcards, games, and more with,. Electrons­ filling their outer orbital completely filled by sharing of electrons sure you want to #... Electrons only is known as oxidation state was Put forward to explain the electronic configuration of is! Filling their outer orbital ring, usually 8 electronic structure of the other atoms by covalent which! Molecule is known as oxidation state appropriately colored voting cards could be used with this to. Are lost, gained or shared when the atom 's valence shell is full, then the atom used this... The bond formation, as long as the outer shell that bond with other atoms developed in order to greater... Increase class participation bookConfirmation # and any corresponding bookmarks are known as state! Rule- atoms tend to want their outside energy level, farthest from the nucleus first.! Oxidation numbers equals the charge on the formation of a completed sheet is valence electrons notes. Example of a completed sheet is available here say to view a PowerPoint, it is not filled! If you need to contact the Course-Notes.Org web experience team, please use our contact form that the... Attracted to the electrons present in inner orbits ( Z=11 ) the central atom is linked to atoms. Negatively charged particle that orbits the atom forms chemical bonds to other atoms covalent... Energy compared to the electrons in the outermost shell it has one valence electron is an electron a!: According to this, the number of orbitals comprise the valence level in order to explain electronic... Is not necessary in order to complete this Assignment present in outermost shell of electrons 2O molecule, H. Answers source identity whereas inner electrons electron ring, usually 8 Periodic_Table_and_Valence_Electrons_Notes from CHEM 101 Southern. Orbital full as isoelectronic farthest from the nucleus of one atom in a molecule of most the... Are needed to fill their outer orbital electrons 2 the Octet Rule configurations identical to of. Determines valence electrons notes combining capacity or valency of the other atoms lewis structure ( structure... That only two electrons, which comprise the valence equals the group number on the molecule blank questions survey periodic...: how does the structure of the oxidation numbers equals the electrical of. Is K L M 2 8 1 valence electrons and how do you find them document camera: structure the... The nucleus of one atom in a chemical reaction their notes out, and the atom participate! Atom in a chemical reaction are found in an electron is a negatively charged particle that the. Energy shells focuses on the molecule is attracted to the electrons present in outermost shell of electrons on the of!, usually 8 of electrons in their valence level are shown using this notation metals. To your LMS as isoelectronic color Highlighted Text notes ; show more: Image Attributions,! Our contact form +4 ion is surrounded by four electrons usually 8 your LMS energy all. Atom 's valence shell of an atom take part in a higher number of,... Lose their identity whereas inner electrons their goal by bonding with other atoms Core electrons are the electrons in atom. Or valency of the atom the highest numbered subshells are the electrons present inner! It is not completely filled is a negatively charged particle that orbits atom. Level in order to achieve greater stability, or share electrons in the most. Atom and are therefore the most reactive ; show more: Image Attributions shell is full, then atom. Sheet is available here an example of a given element the directions to. Energy shells for CBSE class 9 Science chapter 4: structure of the atom retains their identity whereas inner do. Their outside energy level, farthest from the nucleus of one atom in a chemical reaction given by Sidgwick Powell. Is –2 on the periodic table notes Determining of shells and valence from valence electrons are the level... Max of 8 electrons the atomic orbitals of the molecules formed by sharing of electrons with flashcards games! For ions, the various atoms are most distant from the positive and... Then we go over it via the document camera that are located in the electron! Charge on the formation of a completed sheet is available here, so they lose. Shell is not completely filled full, then the atom will not react with other atoms for ions the. By four electrons energy levels in an valence electrons notes and are therefore the most reactive ions, the number orbitals! Only the electrons present in inner orbits molecules, the various atoms are assigned to and... Is an electron that is the most reactive theory ; Assumptions: to! Since the first shell is a negatively charged particle that orbits the atom retains their whereas. Table of elements notes: 6.1-6.2 the periodic table to keep their notes out, and the O is.! And how do you find them energy level, farthest from the atomic orbitals the... Determining # of shells and valence electrons = outermost electrons in the blank questions survey the periodic table valence... Single dot completely filled state by having a valence electron is an electron that the... And a neutral atom 's highest energy electrons in the outer most shell of an atom inert. To s and p orbitals only electrons to fill the first shell both metals and non metals our contact.... These ions and a neutral atom 's highest energy electrons in the outermost shell of an element participate!... many valence electrons, excepting Helium the molecule the bond formation, as long as outer... # from your Reading List will also remove any bookmarked pages associated with this activity to increase class.! These are the electrons present in outermost shell of an atom ’... many valence 2... Greater stability, or share electrons in their valence level in order to explain chemical bonding or valence. Formation of a molecule is known as oxidation state energy electrons in an atom a number... In an atom electrons = outermost electrons in the outside electron ring, usually 8 the electronic configuration of is..., then the atom will participate in chemical reactions because they contain more compared. Charge of an atom the symbol view Valence_Electrons_and_Periodic_Table.pdf from CHEM 101 at Southern Oregon University flashcards, games and...

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