A proton, symbol p or p +, is one of the subatomic particles that make up matter. In the universe, protons are abundant, making up about half of all visible matter. A proton is a subatomic particle found in the nucleus of all conventional atoms. The only place you can find matter without protons is in a neutron star or the core of powerful particle accelerators. The proton has a positive charge, which balances out the negative charge in atoms, electrons. Proton, stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge and a rest mass of 1.67262 x 10^-27 kg, which is 1,836 times the mass of an electron. Protons, together with electrically neutral particles called neutrons, make up all atomic nuclei except for that of hydrogen. A proton is one of the three main subatomic particles that make up an atom. The other two being neutron and electron. The common symbol for a proton is p or p +. The nucleus of a hydrogen atom or H + ion is an example of a proton. The word 'proton' came from the Greek word meaning 'first'. The proton is, in effect, the index particle of any atom. It is the number of protons in an atom that determines the identity of the element an atom belongs to; in other words, if two atoms have a different number of protons, they are not the same element. Vay Tiền Online Chuyển Khoản Ngay.

what is proton in atom