Question

"Lithium is the only metal among alkali metals that can form nitride."
Answer whether the above statement is true or false.
If true enter 1, else enter 0.

Answer 1

The statement is correct.

$N^{3-}$ is very small in ionic size and thus, can be set into crystalline lattice with smaller $L{i}^{+}$ ion. Thus, $L{i}_{3}N$ is formed.

$6Li+N_2\to 2L{i}_{3}N$

Other alkali metals donot form nitrides due to larger size.