Question

The mass of an electron is

A.equal to the mass of a proton

B.equal to the mass of a neutron

C.greater than the mass of a proton

D.less than the mass of a neutron

Answer 1

Protons have a mass of 1.67x10⁻²⁴ g

neutrons have a mass of 1.675x10⁻²⁴ g

electrons have a mass of 9.1x10⁻²⁸ g

So The mass of an electron is D.less than the mass of a neutron

Answer 2

D less mass than a neutron