If an atom has 16 protons, 14 neutrons, and 18 electrons. What is the charge of the nucleus?

The charge of nucleus will be +2.

Explanation:

Given that,

Proton = 16

Neutron = 14

electron = 18

We know that,

Atomic number :

The number of proton in the nucleus is equal to the atomic number.

The number of protons is equal to the number of electrons for neutral atom.

So, the atomic number is same as the number of electrons.

Here, the number of electron is more than 2 of number of proton.

Hence, The charge of nucleus will be +2.

it is b that is the answer.