Chemistry ! which of the following best describes how an electron moves when it releases energy? a. the electron is pulled into the nucleus. b. the electron moves to a higher energy level. c. the electron moves to a lower energy level. d. the electron is pulled to another atom.

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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