What part of the atom carries a negative charge?

Electrons are the subatomic particles that carry a negative charge. They are found outside the nucleus of an atom, in various energy levels or electron shells. The presence of electrons is crucial to the chemical behavior of an atom, as they are involved in forming bonds with other atoms. The negative charge of electrons allows them to attract positively charged protons within the nucleus, creating a balance that holds the atom together in a stable state.

Understanding the role of electrons helps clarify various concepts in chemistry and physics, including how atoms interact, how ions form, and the principles of electrical charge and conductivity. This fundamental knowledge is essential in fields such as esthetics, where the understanding of products and treatments often relates back to the properties of the molecules involved.