Question

which of the following is an atom? n ch₄ hcn

Explanation:

An atom is the smallest unit of matter that retains the properties of an element. The symbol \(N\) represents a nitrogen atom. \(CH_4\) (methane) is a molecule composed of one carbon atom and four hydrogen atoms. \(HCN\) (hydrogen cyanide) is a molecule composed of one hydrogen atom, one carbon atom, and one nitrogen atom.

Answer:

N