Use the equation to complete the activity.

219 86Rn→215 84Po+α 86219Rn→ 84215Po+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.

The reaction is not balanced because the total number of protons and neutrons on the left side of the equation (219 + 86) is not equal to the total number of protons and neutrons on the right side (215 + 84 + 4).

The reaction is not balanced because the total number of protons and total number of neutrons are not equal on both sides of the equation.

To determine whether the reaction is balanced, we need to check if the total number of protons and neutrons (mass number) and the total number of protons (atomic number) are the same on both sides of the equation. In this case, the mass numbers are balanced on both sides (219 = 215 + 4), but the atomic numbers are not balanced (86 ≠ 84 + 2). Therefore, the reaction is not balanced.