Electron

Electrons

Electrons are tiny particles that move around the nucleus of an atom. They carry a negative electric charge and are much smaller and lighter than protons and neutrons. Electrons are important because they control how atoms bond and interact with each other. For example, when two atoms share or transfer electrons,...

Have you ever wondered what’s inside an atom? J.J. Thomson asked the same question, and his curiosity led to an important discovery: the electron.

Electrons are tiny parts of an atom, along with protons and neutrons.

But unlike protons and neutrons, which sit tightly in the nucleus, electrons move quickly around the outside, almost l...