All elements in Ammonium nitride are Non-metals, i.e. Hydrogen and Nitrogen are non-metals
2 non metallic elements = Nitrogen and Hydrogen
Ammonium nitride
ammonium nitride is a water soluble solid. it is formed (or so Ive read) by the double displacement reaction between lithium nitride and ammonium nitrate, leaving lithium nitrate and ammonium nitride. it is highly unstable and will explode violently if heated vigorously but can be made to decompose slowly if gently heated to around 100 degrees, for that reason i am guessing it would be safer to boil a dilute solution of the compound, but this may still be dangerous.
ionic and it's magnesium nitride
lanthanum nitride
2 non metallic elements = Nitrogen and Hydrogen
Ammonium nitride
compound
You should be aware the ammonium is NH4. If you already have ammonium nitride, you don't need to prepare NH4 because you already have it, in a water soluble compound. Admittedly, ammonium nitrate is used more commonly than the nitride.
Aluminium nitride is a compound.
K3N is not an element. It is a compound known as potassium nitride.
ammonium nitride is a water soluble solid. it is formed (or so Ive read) by the double displacement reaction between lithium nitride and ammonium nitrate, leaving lithium nitrate and ammonium nitride. it is highly unstable and will explode violently if heated vigorously but can be made to decompose slowly if gently heated to around 100 degrees, for that reason i am guessing it would be safer to boil a dilute solution of the compound, but this may still be dangerous.
(nh4)3n
It is an ion
It is a compound. You can clearly see it contains two elements: nickel (Ni) and nitrogen (N). The name of this compound is nickel III nitride.
Zinc nitride: Zn3N2
Aluminium nitride: AlN