Nuclear Physics MCQs

Correct answer B. mass number falls by 4 and atomic number by 2

Correct answer C. Alpha particles

Correct answer C. It is electromagnetic radiation with no charge

Correct answer A. a neutron in the nucleus changing into a proton

Correct answer D. a helium nucleus

Correct answer C. The decay rate is unaffected by temperature, pressure or chemical state

Correct answer D. Protons and neutrons

Correct answer B. It is impossible to predict which nucleus will decay next

Correct answer D. the same number of protons but different numbers of neutrons

Correct answer D. the total number of protons and neutrons