Question

What does adding a neutron to an atom's nucleus do to the atom's mass? A. A neutron has no mass, so the atomic mass will remain unchanged. B. A proton will be added with the neutron, increasing the weight by 2 mass units. C. Adding a neutron is balanced by adding an electron, keeping the mass the same. D. It adds 1 more unit of mass to the atomic weight of the atom.

Answer 1

Answer:

(D)

Explanation:

The answer is (D) because the mass of a neutron is taken to be 1 unit. Thus, when 1 neutron is added, the atomic mass of the atom increases by 1.

I HOPE THIS HELPED YOU!