WJEC Chemistry Practice Exam - Practice Test & Study Guide

The term for the negatively charged particle found in atoms is the electron. Electrons play a fundamental role in an atom's structure and are involved in chemical bonding and reactions. They are located in the electron cloud that surrounds the nucleus, which contains positively charged protons and neutral neutrons.

Protons, which are positively charged, and neutrons, which have no charge, make up the nucleus of the atom. As for the nucleus, it is not a particle itself but rather the central part of an atom containing protons and neutrons. Therefore, electrons are the only particles in this context that carry a negative charge.