Which of the following metal on burning in moist air does not give smell of ammonia ?

In I group only Li form nitride and all II group metals form nitride.

$\mathrm{Mg}+{\mathrm{N}}_2\to {\mathrm{Mg}}_3{\mathrm{N}}_2\stackrel{{\mathrm{H}}_2\mathrm{O}\text{ (moist) }}{⟶}\mathrm{Mg}(\mathrm{OH}{)}_2+{\mathrm{NH}}_3$
$\mathrm{Ca}+{\mathrm{N}}_2\to {\mathrm{Ca}}_3{\mathrm{N}}_2\stackrel{{\mathrm{H}}_2\mathrm{O}\text{ (moist) }}{⟶}\mathrm{Ca}(\mathrm{OH}{)}_2+{\mathrm{NH}}_3$
$\mathrm{Li}+{\mathrm{N}}_2\to {\mathrm{Li}}_3\mathrm{N}\stackrel{{\mathrm{H}}_2\mathrm{O}\text{ (moist) }}{⟶}\mathrm{LiOH}+{\mathrm{NH}}_3$
$\mathrm{K}+{\mathrm{N}}_2⟶\text{ no reaction }$