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An alpha particle is approximately 4 times heavier than a proton. It consists of two protons and two neutrons, whereas a proton is just a single subatomic particle.
An example of a subatomic particle is an electron. Electrons are negatively charged particles that orbit the nucleus of an atom. They play a key role in various chemical reactions and electrical conductivity.
The smallest subatomic particles can be found within the nucleus of an atom. These include protons and neutrons, which are further composed of even smaller particles called quarks.
2 protons, 2 electrons and 2 neutrons
Neutron:Mass: 1,00866491600(43) amu.Electron:Mass: 5,4857990946(22)×10−4 amu.Proton:Mass: 1,007276466812(90) amu.
A subatomic particle with two neutrons that is emitted during some types of radioactive decay is called an alpha particle. It consists of two protons and two neutrons, and is used to reduce the mass and atomic number of the parent nucleus.
An electron is the least massive subatomic particle. It has a mass of approximately 9.11 x 10^-31 kilograms.
This particle is the electron: 9,10938291(40)×10−31 kg or 5,4857990946(22)×10−4 amu.
6 subatomic particles. 2 protons and 2 neutrons (that accounts for the mass of 4 amu) as well as 2 electrons.
In the atom:Neutron:Mass: 1,00866491600(43) amu.Charge: neutralElectron:Mass: 5,4857990946(22)×10−4 amu.Charge: negativeProton:Mass: 1,007276466812(90) amu.Charge: positive