Question

Which of the following has negligible mass?

A) Proton

B) Neutron

C) Atom

D) Electron

E) Element

Answer 1

Electrons have virtually no mass, while protons and neutrons have a lot of mass for their size.

Step-by-step explanation:

The electron has negligible mass compared to other subatomic particles. Electrons have virtually no mass, while protons and neutrons have a lot of mass for their size. In fact, if an electron was the mass of a penny, a proton or a neutron would have the mass of a large bowling ball. Therefore, the correct answer is D) Electron.