Aneutron breaks down to form ?
a. a proton and an electron
b. two protons
c. a helium nucleus
d. an alpha particle

what particle decomposes to produce the electron of beta radiation?
a. electron
b. neutron
c. proton
d. positron

what is the change in atomic mass when an atom emits gamma radiation?
a. mass increases by 1
b. mass decreases by 1
c. mass remains the same
d. mass decreases by 2

what is the change in the atomic number when an atoms emits an alpha particle?
a. increases by 2
b. increases by 1
c. decreases by 4
d. decreases by 2