When two hydrogen atoms get close enough, the electron from each atom feels an attraction from the proton in the other atom's nucleus. This attraction pulls the atoms together. The electrons end up ...

A sodium and chlorine atom are near each other. An electron from each atom feels the attraction from the other atom's nucleus. The attraction by chlorine is stronger than the attraction by sodium. An ...

Number of protons Z = 30 Number of protons + neutrons A = 64 Number of neutrons N = 64 - 30 = 34 Since this is a nucleus there are no electrons There are 30 protons and 34 neutrons.

though the unnamed unit is not exactly an atom of hydrogen, but the nucleus, the main substance, of that atom.

Nucleons, the particles that make up the nucleus of an atom, are fundamental to understanding the universe's building blocks.

We have recently obtained something like a direct proof of van der Broek’s view that the intra-atomic charge of the nucleus of an atom is not a purely positive charge, as on Rutherford’s ...

In 1919 Rutherford had discovered the proton, a positively charged particle within the atom's nucleus. But they and other researchers were finding that the proton did not seem to be the only ...

The Coulomb barrier, which arises from the electrostatic repulsion between the positively charged protons and the nucleus, ...

At the cutting-edge Facility for Rare Isotope Beams, researchers have precisely measured the mass of aluminum-22, revealing ...