<span>the number of neutrons they have</span>
<span>some elements would be Beryllium, Barium, Magnesium, and Strontium</span>
Answer:
A beta particle
Explanation:
The radioactive particle must undergo a beta decay to have the mass number unchanged but the atomic number to have decreased by one.
This type of beta decay results in the emission of a positron which is a type of beta particle. It resembles an electron but it has a positive charge of 1.
solid
s
liquid
l
gas
g
aqueous solution
aq
Hope that helps! :D
