Use the equation to complete the activity. 2198621986 Rn + Beta→ 2198521985 As The nuclear equation shows a form of radon into astatine and a beta particle. In one to two sentences, explain whether or not the reaction is balanced. (1 point) Responses
A.mass number is zero, and it is a neutron
B.mass number is zero, it is a proton
C. mass number is zero, it is a gamma.
D.mass of beta is zero, and it is an electron