An atom has the electron arrangement 2,8. What will it do to gain a full
outer shell?
A) bond with itself
B) gain 8 electrons
C) lose 8 electrons.
D) nothing, it already has a full outer shell

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

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