The Discovery of Isotopes

Nuclide

Il termine nuclide designa un atomo caratterizzato dall'avere nel suo nucleo un numero specificato di protoni (numero atomico Z), un numero specificato di neutroni (numero…

Tetraneutron

A tetraneutron is a hypothetical stable cluster of four neutrons. The existence of this cluster of particles is not supported by current models of nuclear forces.

Neutron

The neutron is a subatomic particle, symbol or, which has a neutral (not positive or negative) charge, and a mass slightly greater than that of a proton.

Radon-222

Radon-222 (222Rn, Rn-222) je nejstabilnější izotop radonu, s poločasem přeměny přibližně 3,8 dne.