What is the electron configuration for a phosphide ion?

1 Answer
Callum S. ยท Stefan V.
Nov 25, 2015

["Ne"] 3s^2 3p^6

Explanation:

The electron configuration of phosphorus is ["Ne"] 3s^2 3p^3

When the phosphide ion forms, the phosphorus atom gains three electrons. Thus, the electron configuration becomes ["Ne"] 3s^2 3p^6 because the phosphorus atom gains three electrons that are added to the 3p subshell.

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