E N D
1. Investigation 6A
3. Nitrogen-14Nitrogen-14
4. Neon-21Neon-21
5. Iron-56Iron-56
6. Carbon-14Carbon-14
7. Aluminum-21Aluminum-21
8. CalciumCalcium
9. Helium-3Helium-3
10. Fluorine-19Fluorine-19
11. Lithium-7Lithium-7
12. Chlorine-36Chlorine-36
13. Silicon-28Silicon-28
14. CopperCopper
15. Phosphorus-31Phosphorus-31
16. ChromiumChromium
17. ArgonArgon
18. MagnesiumMagnesium
19. Beryllium-9Beryllium-9