1. Uranium 238 Decay Series

2. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Uranium U 92 238 Alpha 4.5x10 yrs 9

3. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Polonium Po 84 214 Alpha 1.6x10 sec -4

4. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Radon Rn 86 222 Alpha 3.82 days

5. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Lead Pb 82 206 stable none

6. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Proctactinium Pa 91 234 Beta 1.17 min.

7. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Lead Pb 82 214 Beta 26.8 min

8. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Thorium Th 90 234 Beta 24.1 days

9. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Thorium Th 90 230 Alpha 8x10 yrs 4

10. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Polonium Po 84 218 Alpha 3.05 min

11. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Bismuth Bi 83 210 Beta 5.01 days

12. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Bismuth Bi 83 214 Beta 19.7 min

13. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Lead Pb 82 210 Beta 21 yrs

14. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Polonium Po 84 210 Alpha 138.4 days

15. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Uranium U 92 234 Alpha 2.5x10 yrs 5

16. Element: Symbol: Atomic Number: Atomic Mass: Decay Particle: Half Life: Radium Ra 88 226 Alpha 1,600 yrs