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  3. Chemistry
  4. The nitrogen atoms has 7 electrons, the nitride ion (N3-) will have:

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Q. The nitrogen atoms has $7$ electrons, the nitride ion $\left(N^{3-}\right)$ will have:

Delhi UMET/DPMTDelhi UMET/DPMT 2001

Solution:

Anions are negatively charged species and are formed by gain of electrons.
$ N+3e^{-}\to N^{3-} $
No. of e $7 10$ No. of $p\, 7 7$