What happens to an ALPHA PARTICLE when -

1. An electron is added to it
2. Two electrons are added to it
Thnx in advance :)

1. You have a He+ ion - unstable because it has one unpaired electron. Electrons really like to be in pairs actually.

2.You have a He atom, it is very stable because the number of electrons matches the number of protons, there is no overall charge and it is quite happy. The first electron shell is now full.