Thermal energy is the energy associated with

Question options:

A. electric fields.

B. being stored in chemical bonds.

C. the pull of gravity.

D. temperature.

D. Temperature

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.

→

the answer for sodium is 0.186

the answer for rubidium is 0.251