The alkali metal that reacts with nitrogen directly to form nitride is (a) Li (b) Na (c) K (d) Rb..
Explain the answer.
The solution is as follows:
1. The correct option is (a) Li.
2. This is because, the Lattice energy released ( due to high size compatibility as both Li+ and N3- are small in size) when Li forms Lithium nitride is high enough to compensate for high Ionisation energy and electron enthalpy involves in the process.
3. The reaction is as follows:
6 Li (s) + N2 (g) 2 Li3N (s)
1. The correct option is (a) Li.
2. This is because, the Lattice energy released ( due to high size compatibility as both Li+ and N3- are small in size) when Li forms Lithium nitride is high enough to compensate for high Ionisation energy and electron enthalpy involves in the process.
3. The reaction is as follows:
6 Li (s) + N2 (g) 2 Li3N (s)