Question

why nitrogen forms compound alkaline earth metal directly

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Answer 1

Answer:

Alkali metals are very powerful reductants …. and are thus easily oxidized. And while dinitrogen, with a triple bond, is very stable, the dinitrogen triple bond can be reduced. And in fact the reaction of dinitrogen with lithium metal is one of the few reactions that the gas will undergo at room temperature…

Answer 2

Nitrogen forms compound alkaline earth metal directly because:

Explanation for the answer:

• Alkali metals are the metals consisting of powerful reductants and therefore they can be easily oxidised.
• Also during dinitrogen with a N≡N triple bond these metals are very stable as the dinitrogen triple bond can be reduced.
• In fact this dinitrogen reaction with lithium metal is one of the few reactions in which the gas will undergo at room temperature.
• The example of such a reaction is:
• $6Li(s)+N≡N(g) → 2Li3N(s)$
• Also, with the alkaline earth metals, a little amount of heat is required to start the reduction process.
• The example of such a reaction is:
• $3Mg (s)+N≡N(g) → Δ Mg3N2(s)$

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