same as a helium atom: 2 protons 2 neutrons
Alpha have a mass of 4 ( protons+ neutrons) and a charge of +2 (protons are positive)
When an
-particle or
-particle ionises an atom, it slows the particle down.
This is one reason that alpha particles have such a low penetrating power - they ionise other atoms strongly and thus get slowed down a great deal.
alpha gains electrons when ionising as they attract the negative electrons strongly through ionising.
Comments
No comments have yet been made