Just b.) please

3. For each of the following valence electron configurations of a homonuclear diatomic molecule or molecular ion (i.e., a molecule or ion comprised of two identical atoms, such as N2 or F2+), identify the element X, Q, or Z (in this problem, I have given you the molecular electron configurations using the same formalism as we did to represent atomic electron configurations): (a) X2:(2s)2(2s)2(2p)2(2p)4(2p)2 (b) Q2:(2s)2(2s)2(2p)3 (c) Z22+:(2s)2(2s)2(2p)2(2p)4(2p)2