Answer :
A nitrogen atom in N2 has a charge of 0. Both atoms in the N2 molecule share electrons equally, resulting in no partial charge and maintaining their neutral state. Therefore, the correct option is D.
A nitrogen atom in N2 will have a charge of 0. This is because, in the diatomic molecule N2, both nitrogen atoms share three pairs of electrons equally between them, forming a triple bond - this is a pure covalent bond with no difference in electronegativity between the two atoms. Thus, neither atom has a partial charge. Nitrogen, being in group 15 of the periodic table, has five valence electrons. When forming N2, each nitrogen atom participates in three bonds (sharing six electrons), resulting in no remaining lone pairs and no change in the number of electrons around each nitrogen atom compared to its neutral state. Therefore, each nitrogen atom in N2 maintains a charge of 0. In other nitrogen compounds, such as NH3 (ammonia), the nitrogen has a lone pair and forms three bonds, which also results in a formal charge of zero.
