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How many electrons are there in the outermost shells of fluorine (F) atoms? A. 2 B. 7 C. 9 D. 19
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How many electrons are there in the outermost shells of fluorine (F) atoms?

A. 2
B. 7
C. 9
D. 19

User Mswanberg
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1 Answer

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Answer:

C. 9

Step-by-step explanation:

There are 2 electrons in the first shell, and 7 in the second, for a total of 9.

A flouride ion, on other hand, would have 8, since it fills that second shell with an extra electron (that's why it has a charge of -1)

User Charito
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