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What is valency of nitrogen in HN3?
i guess it is 2
Is hydrogen nitride ionic or covalent?
HN3 can be 2 things:One compound is Tris(2-chloroethyl)amine is an organic compound with the formula N(CH2CH2Cl)3. It is Often abbreviated HN3 and known as nitrogen mustard gas.Another is Hydrazoic acid, also known as hydrogen azide or azoimide. It is a colorless, volatile, and extremely explosive liquid at room temperature. It is a compound of nitrogen and hydrogen, having chemical formula HN3.Both are covalent compounds, but Hydrazoic acid can form ions as well.Note that the amine is abbreviated as HN3 (without subscript) and the acid has the formula HN3 (with subscript).
Is HN3 a polar covalent molecule?
Yes, the N-H bond creates the asymmetric structure of the molecule.
Why does nitrogen show catenation properties less than phosphorus?
This is a difficult question. What has to be addressed is the fact that in group 14, carbon is excellent at forming long chains, which contrasts to the heavier elements in the group. The ability drops to form chains decreases as you go down the group. With group 15 concatenation of nitrogen seem to limit at 3 in HN3. Phosphorus catenates in a comparable way to silicon. What is different? Well N2 is amazingly stable- its triple bond is approximately 3X the strength of a N-N single bond. In simple terms this means that whenever you try to form a long chain catenated nitrogen compound, nitrogen gas is just too stable and the molecule falls apart. HN3 is very unstable and is explosive.
