to be a hard substance.
A beta carbon nitride is a theoretical binary compound of carbon and nitrogen, chemical formula C3N4, which is thought would have properties similar to diamond or boron nitride.
Fe3+ N3- . Note this is compound does not exist. iron nitrides are insoluble solids with metallic properties.
K3N is not an element. It is a compound known as potassium nitride.
This method of naming a compound tells you the composition, the formula unit, but not necessarily the structure. As it happens calcium nitride is Ca3N2 is a crystalline near ionic compound. Its red brown in color and hydrolyses readily.
Zinc nitride: Zn3N2
Aluminium nitride: AlN
Li3P is an unstable compound. It would be named lithium phosphide, or if using the prefix notation, it would be called trilithium phosphide.
compound
ionic and it's magnesium nitride
There is no compound with the formula AlN2. However, AlN is aluminum nitride.
Lead nitride is an ionic compound.
This nitride is a solid compound.