Question

How many valence electrons does a neutral atom with 15 protons have?

Answer 1

Answer:

A neutral phosphorus atom has 15 total electrons. Two electrons can go into first shell, eight in the second shell, and it has five more in the third shell. The third shell is the outer valence shell, so it has 5 valence electrons.

Explanation:

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Answer 2

Answer:

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Explanation:

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