Asked by pritam | 4th Aug, 2010, 10:11: PM

Expert Answer:

For such questions write the configuration of atoms first.
Here Ca has config. 2,8,8,2
So, it will lose 2 electrons to form Ca2+.
N has electr. config. 2,5
So, it will accept 3 electrons to form N3-.
Thus the formula will be Ca3N2

Answered by  | 5th Aug, 2010, 10:28: AM

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