Question

An elements’ neutral atoms have 5 valance electrons and 3 electron shells. What element is it?

Answer 1

Phosphorus

Step-by-step explanation:

Group 5A has 5 valence electrons.

3 electron shells equals 15 electrons on Phosphorus. Furthermore, 2 on shell 1, 8 on shell 2, and 5 on shell 3.

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