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What is the electron configuration for a nitride ion?
The nitride ion is ##N^(-3)##
The original for nitrogen is
##1s^2 2s^2 2p^3##
In order to fulfill the , the nitrogen atom would take on three additional electrons giving nitrogen a -3 charge.
##N^(-3)## ##1s^2 2s^2 2p^6##
I hope this was helpful. SMARTERTEACHER