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 mass number is zero, and it is a neutron mass number is zero, and it is a neutron mass number is zero, it is a proton mass number is zero, it is a proton mass number is zero, it is a gamma. mass number is zero, it is a gamma. mass of beta is zero, and it is an electron

The reaction is balanced because the sum of mass numbers on both sides of the equation is equal, indicating the conservation of mass in the nuclear reaction.