Question

Describe the particles that make up the nucleus of an atom in terms of mass and charge.

Answer 1

Nuclei are made up of:
protons
• mass = 1.673e-27 kg, and
• charge = -1.602e-19 C, sometimes written "-1" or "1 e" (1 electron)
and neutrons
• mass = 1.675e-27 kg, and
• charge = 0 C (or "0" or "0 e")