Question

What happens to the position of an element in the periodic table when it emits a $\beta$-particle?

• A. Changes to one place after.
• B. Changes to one place earlier.
• C. no change
• D. cant say

Answer 1

The correct option is A Changes to one place after.

An ${\beta }^{-}$ particle emission changes $1$ neutron to $1$ proton. So the atomic number is increased by $1$. Thus the position of the element is shifted by one place after, in the periodic table.