Question

1. what is the correct name for a compound with the chemical formula pn?

a phosphorus nitride
b. monophosphorus mononitride
c. phosphorus(iii) nitride
d. phosphorus mononitride

Explanation:

• For binary covalent compounds (compounds between two non - metals), we use prefixes to indicate the number of atoms of each element.
• In the formula \(PN\), \(P\) is phosphorus and \(N\) is nitrogen.
• Since there is one phosphorus atom and one nitrogen atom, the prefix “mono -” is used for each (but “mono -” is often omitted for the first element when there is only one). So the name is phosphorus mononitride.

Answer:

D. Phosphorus mononitride