What is an electron?

A. Where protons and neutrons are

found

B. The smallest part of an atom

C. A part of an atom that is positively

charged

D. The heaviest particle in an atom.

Answer: B. The smallest part of an atom

Explanation:

Electrons are the smallest of the three particles that make up atoms. Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. They group together in the center of the atom.