Question

how many type of atomic structure

Answer 1

All atoms above atomic number 82 (82 protons, lead) are radioactive. There are three main types of radioactive decay; alpha, beta and gamma. Alpha decay is when the atom shoots out a particle having two protons and two neutrons. This is essentially a helium nucleus.

Answer 2

All atoms above atomic number 82 (82 protons, lead) are radioactive. There are three main types of radioactive decay; alpha, beta and gamma. Alpha decay is when the atom shoots out a particle having two protons and two neutrons. This is essentially a helium nucleus.
I hope useful answer for you