222 4 1. 86Rn ———> ________ + 2He 234 4 2. ———> 90Th + 2He 230 226 3. 90Th ———> 88Ra + ______ 214 0 4. 82Pb ———> ______+ -1e

222   4 1. 86Rn ———> ________ + 2He 234  4 2. ———> 90Th + 2He 230   226 3. 90Th ———> 88Ra + ______ 214  0 4. 82Pb ———> ______+ -1e 234   234 5. 92U ———> 93Np + _______ 6. Write a balanced nuclear equation for the Beta decay of: a. Nitrogen-16 b. Potassium-40 7. Write a balanced nuclear equation for the Alpha decay of: a. Plutonium-244 b. Strontium-90 8. Write the balanced nuclear equations for the Beta, Alpha, and Gamma decay of Radium-226. 9. How are the mass number and atomic number of the nucleus affected by the loss of the following? a. beta particle b. alpha particle c. gamma particle