Use the equation to complete the activity. 21986 Rn + Beta→ 21985 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, it is a proton mass number is zero, it is a proton mass of beta is zero, and it is an electron mass of beta is zero, and it is an electron 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 gamma.

The reaction is not balanced because the total mass numbers on both sides of the equation do not equal each other. The beta particle should have a mass number of 0 and it is missing from the equation.