I believe you mean silicon nitride. Please see the link.
If you think to silicon nitride, Si3N4, this is a chemical compound with covalent bonds.
This is the chemical formula of calcium nitride.
K3N is not an element. It is a compound known as potassium nitride.
The formula for copper(I) nitride is Cu3N. Nitride has a valency of -3
Magnesium(I) Nitride is the name of Mg3N.
126 protons are in nitride.
nitride has a -3 charge
Sodium Nitride is Na3N
The formula is CrN. It is called Chromium nitride and Chromium(III) nitride. Chromium also forms second interstitial nitride, dichromium nitride - Cr2N
Carbon nitride is C3N4
No, the nitride ion has a 3- charge
Zinc nitride: Zn3N2