Completion
Complete each sentence or statement.
NOTE: You will need to use the Periodic Table chart in the back of your chemistry book to look up
each element and figure out the number of electrons..
HINT: The TOP number in each element rectangle is called the “Atomic Number” and represents how
many electrons and protons the element has.)
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Electron Shell Configurations (for elements with atomic numbers 1-20)
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3rd shell (18 max) but ... no more than 8 in outer shell
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4th shell (32 max) but ... no more than 8 in outer shell
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1
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2-1
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2-8-1
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2-8-8-1
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2
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2-2
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2-8-2
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2-8-8-2
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2-3
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2-8-3
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2-4
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2-8-4
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2-5
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2-8-5
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2-6
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2-8-6
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2-7
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2-8-7
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2-8
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2-8-8
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1.
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Give the electron shell configuration for Carbon.
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2.
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Give the electron shell configuration for Fluorine.
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3.
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Give the electron shell configuration for Boron.
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4.
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Give the electron shell configuration for Sulfur.
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5.
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Give the electron shell configuration for Argon.
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6.
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Give the electron shell configuration for Calcium.
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7.
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Give the electron shell configuration for Silicon.
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8.
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Give the electron shell configuration for Aluminum.
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9.
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Give the electron shell configuration for Chlorine.
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10.
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Give the electron shell configuration for Helium.
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11.
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Give the electron shell configuration for Neon.
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