We make atomic number by number of protons in a atom. We make mass number by total of both protons and neutrons.
226Ra------------alpha particle----------222Rn (radon, a radioactive gas)
electrons are not present in the nucleus
When the nucleus releases a beta minus particle the atomic number increase with 1.When the nucleus releases a beta plus particle the atomic number decrease with 1.
In the atomic nucleus this particle is the neutron.
That particle is an electron.
The neutron is the particle in the atomic nucleus that carries no charge.
In the atomic nucleus this particle is the neutron.
This particle from the atomic nucleus is the proton.
Proton.
An alpha particle is a helium nucleus, which consists of 2 protons and 2 neutrons. When an unstable nucleus emits an alpha particle, it loses 2 protons, which means its atomic number will be reduced by 2.
The number of Protons in the nucleus determines the atom's Atomic number.
The atomic number decreases by one for each beta particle