MCQ
The nitride ion in lithium nitride is composed of
- A$7P + 7e$
- B$10P + 7e$
- ✓$7P + 10e$
- D$10P + 10e$
✓
Answer
Correct option: C.
$7P + 10e$
c
Lithium nitride is $Li _3 N$. Here, nitride ion is $N$ with $-3$ charge. Since atomic no. of nitrogen is $7$ .
Lithium nitride is $Li _3 N$. Here, nitride ion is $N$ with $-3$ charge. Since atomic no. of nitrogen is $7$ .
So, the number of protons is $7$ and number of electrons will be $7+3=10$.
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