What is the charge and location and mass of a proton and a neutron and an electron in the atom?

Atoms

The charge on a proton is +1. Its location is the nucleus, and its mass is 1.67262 x 10^-27 kg.

The charge on an electron is -1. It is found in a region around the nucleus called the electron cloud. The mass of an electron is 9.10939 x 10^-31 kg (1836 times lighter than the mass of a proton).

The charge of a neutron is 0, and it is located in the nucleus along with the proton(s). The mass of the neutron is 1.67493 x 10^-27 kg.

The elementary charge is equal to 1.60218 x 10^-19 Coulombs.

Note: The mass of the proton and the mass of the neutron apply to the individual particles. When protons and neutrons are combined (fused) in a nucleus to make an atom, they all give up a bit of their mass (mass deficit) to create binding energy (or nuclear glue). This is necessary to offset the repulsion of the protons (which are like charges, and like charges repel), and it is absolutely necessary for this to happen to make the nucleus stick together.

See the Related Questions for more information about the number of protons, neutrons and electrons in an atom.

First answer by Ganderton. Last edit by JEK. Contributor trust: 1864 [recommend contributor]. Question popularity: 50 [recommend question]