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en.wikipedia.org/wiki/Proton

A proton is a subatomic particle, symbol p or p+ , with a positive electric charge of +1e ... The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number (represented by the symbol Z).

www.dictionary.com/browse/proton

Proton definition, a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. It is the lightest and most stable baryon, having a  ...

www.merriam-webster.com/dictionary/proton

Define proton: an elementary particle that is identical with the nucleus of the hydrogen atom, that along with the neutron is a constituent of all…

whatis.techtarget.com/definition/proton

The number of protons in an element's nucleus is called the atomic number. This number gives each element its unique identity. In the atoms of any particular ...

www.vocabulary.com/dictionary/proton

Atoms are made up of three main particles: protons, electrons, and neutrons. A proton has a positive electrical charge, while electrons are negative. The number  ...

nuclear-energy.net/definitions/proton.html

Nov 11, 2016 ... A proton is a subatomic particle with a positive electric charge that lies within the atomic nucleus of atoms. The number of protons in the atomic ...

quatr.us/chemistry/atoms/proton.htm

May 4, 2016 ... May 2016 - A proton is a tiny particle, smaller than an atom. Protons are too small to see, even with an electron microscope, but we know they ...

www.yourdictionary.com/proton

A labeled diagram of an atom in which the protons are the green circles with the plus sign. Licensed from GettyImages. noun. The definition of a proton is a ...

dictionary.cambridge.org/dictionary/english/proton

proton meaning, definition, what is proton: a type of elementary particle (= a very small piece of matter) with a positive electrical…. Learn more.