Question

test: covalent compounds
which is the correct name for p₃n₅?
○ phosphorus nitrogen
○ triphosphorus pentanitride
○ triphosphorus pentanitrogen
○ pentaphosphorus trinitrogen

Explanation:

• In naming covalent compounds, prefixes are used to indicate the number of atoms of each element.
• The prefix "tri - " means three and "penta - " means five.
• For the formula \(P_3N_5\), there are three phosphorus (\(P\)) atoms and five nitrogen (\(N\)) atoms.
• The suffix for the second element (\(N\)) in a covalent compound name is "-ide". So, nitrogen becomes "nitride".

Answer:

B. Triphosphorus Pentanitride