What is the change in atomic mass when an atom emits a beta particle?

Question

A.) decreases by 2

B.) decreases by 1

C.) remains the same

D.) increases by 1

Answer 1

Beta particles are high-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei. In the case of electron emission, it is referred to as "beta minus" (β−), while in the case of a positron emission as "beta plus" (β+). In either case a proton or a neutron is lost, therefore, the answer to your question is 'B', decreases by 1...

Hope this helps!!!

Answer 2

In radioactivity, A beta particle is an electron which has been emitted from the nucleus of an atom, when a neutron turns into a proton and an electron. So for every Beta particle emitted, the number of protons in the nucleus increases by 1

from this you should be able to figure it for yourself!