Question

Which of the following describe a neutron?
A. mass number of 1
B. atomic number of 0
C. positive charge
D. neutral charge

Answer 1

Neutrons have neutral charge and I suppose that the mass may be called as mass number of 1

Answer 2

Neutrons also have an atomic number of 0 as they have no protons.

Answer 3

I don't know how exactly do you decide what is the mass, but I know that the proton has a similar mass to the neutron

Answer 4

The mass of a proton and neutron are very close -- within a few thousands of an amu.

In isotope notation, neutrons are considered to have a mass number of 1.