Chemistry 7.1

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electrons in the outermost occupied energy levle

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shows the symbol of the element & its valence electrons

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states elements want to acheive the electron configurations of noble gasses

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ion formed when group 7A gains 1 electron

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How many valence electrons does Lithium have?

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How many valence electrons does Boron have?

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How many valence electrons does Chlorine have?

Multiple Choice

Which type of atom tends to lose electrons & forms a positive ion?

• metals

• non metals

Multiple Choice

Which type of atom tends to gain electrons & forms a negative ion?

• metals

• non metals

Multiple Choice

Which would be the electron configuration for Argon?

• 1s²

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶

• 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

Multiple Choice

Which would be the electron configuration for Helium?

• 1s²

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶

• 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

Multiple Choice

Which would be the electron configuration for Neon?

• 1s²

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶

• 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

Multiple Choice

Which would be the electron configuration for Krypton?

• 1s²

• 1s²2s²2p⁶

• 1s²2s²2p⁶3s²3p⁶

• 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶

Multiple Select

Ion found on the left side of the Periodic Table.

• metal

• non metal

• anion

• cation

Multiple Select

Ion found on the right side of the Periodic Table.

• metal

• non metal

• anion

• cation