Question

question 24 of 25
during which radioactive decay process does a nucleus lose 2 neutrons and 2 protons?
a. alpha decay
b. beta decay (positron)
c. gamma decay
d. beta decay (electron)

Explanation:

Alpha decay is a type of radioactive decay where a nucleus emits an alpha - particle, which is equivalent to a helium - 4 nucleus consisting of 2 protons and 2 neutrons. So, a nucleus loses 2 neutrons and 2 protons during alpha decay. Beta decay (positron or electron) involves the conversion of a proton to a neutron or vice - versa with the emission of a positron or an electron respectively. Gamma decay is the emission of gamma rays, which are high - energy photons, and does not change the number of protons and neutrons in the nucleus.

Answer:

A. Alpha decay