Question

A. What is the mass number of the particle emitted from the nucleus

Answer 1

Answer: For a. Mass number for the particle is 0.

For b. The charge on the particle is -1.

For c. Another name for $\beta$- particle is electron.

Explanation:

Beta- minus decay is the decay process in which beta-particle is emitted. The mass number of the nuclei remains same and the mass number of the particle is 0. The charge on the particle is -1 and the emitted particle is also called as electron.

$_Z^A\textrm{X}\rightarrow _{Z+1}^A\textrm{Y}+_{-1}^0\beta$

For a. The mass number for the particle is 0.

For b. The charge on the particle is -1.

For c. Another name for $\beta$- particle is electron.