Question

________is responsible for most helium found on the earth.

• A. Gamma decay
• B. Nuclear fusion
• C. Alpha decay
• D. Position emission
• E. Nuclear fission

Answer 1

Answer: (C)

Alpha decay

Alpha decay is responsible for most helium found on earth.

Alpha decay is a radioactive process in which a particle with two neutrons and two protons are ejected from the nucleus of a radioactive atom. Basically, in alpha decay, a Helium atom comes out from the nucleus of a radioactive atom.