What is a major difference between a chemical reaction and a nuclear reaction? a) only chemical reactions release light. b) only chemical reactions can release gamma rays. c) only nuclear reactions can change the identity of the atom. d) only nuclear reactions release energy.

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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