Use the equation to complete the activity.

219 86Rn→215 84Po+α

The nuclear equation shows the transmutation of a form of radon into polonium and an alpha particle. In one to two sentences, explain whether or not the reaction is balanced.

(2 points)

1 answer

The reaction is not balanced because the mass number on each side of the equation does not equal out. On the left side, the mass number is 219 and on the right side, it totals to 215 + 4, which is 219.