The covalency of nitrogen in N2O5 is

Answer: Nitrogen has a covalence of 4 in N₂O₅.

It’s termed covalency when an element shares electrons with other atoms of the same or different elements to form a stable electronic configuration. The covalency of an atom is equal to one if it shares one electron. Its covalency is two if it can share two electrons.

Nitrogen has a valence electron count of five. To complete its octet, it requires three electrons. It can share three valence electrons with the nitrogen atom to form N₂, resulting in a stable electrical state.