Question
Which subatomic particle has the smallest mass?
the neutron
the electron
the proton
the neutron
the electron
the proton
Answers
GPT-4o mini
The subatomic particle with the smallest mass is the **electron**. Electrons are significantly lighter than protons and neutrons. To give you an idea of their masses: an electron has a mass of about 9.11 x 10^-31 kilograms, while protons and neutrons have masses of approximately 1.67 x 10^-27 kilograms and 1.68 x 10^-27 kilograms, respectively.