: an atomic particle that occurs in the nucleus of every atom and carries a positive charge equal in size to the negative charge of an electron.

A proton is a stable subatomic particle, symbol p, H +, or 1 H + with a positive electric charge of +1 e (elementary charge). Its mass is slightly less than the mass of a neutron and …

Dec 8, 2018 · A proton is a subatomic particle with a positive charge. It resides in the atomic nucleus. Atoms consist of smaller particles called protons, neutrons, and electrons. Here is the …

Dec 7, 2025 · It is the positively charged particle that, together with the electrically neutral particles called neutrons, make up the nucleus of an atom. (The nucleus of the ordinary …

PROTON meaning: 1. a type of elementary particle (= a very small piece of matter) with a positive electrical charge…. Learn more.

Sep 2, 2024 · What is the definition of proton? A proton is a fundamental subatomic particle with a positive electric charge equal in magnitude and opposite to the negative charge of an electron.

Jan 7, 2018 · Protons are stable particles that do not decay into other particles. Free protons are common, often formed when sufficient energy is available to separate protons from electrons.

Protons are fundamental subatomic particles that make up the nucleus of an atom, carrying a positive electric charge. They are a crucial component in understanding the structure and …

Definition of proton noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Protons make up part of the nucleus of all atoms except hydrogen, whose nucleus consists of a single proton. In neutral atoms, the number of protons is the same as the number of electrons.