The
First Twenty Elements
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
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1 |
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Helium |
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Li |
4 |
B |
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N |
8 |
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Magnesium |
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Ar |
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Ca |
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Complete
the table filling in the missing names, symbols, and atomic numbers. |
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