1. Hydrogen, 1, 1 and 1
2. Helium, He, 4, 2 and 2
3. Beryllium, 4, 5 and 5
4. Nitrogen, 7, 14 and 7
5. Neon, 10, 20 and 10
6. Aluminum, 13, 27 and 13
7. Sulfur, S, 16, 16 and 16
8. Boron, B, 5, 6 and 5
9. Oxygen, O, 8, 16 and 8
10. Sodium, 11, 12 and 11
11. Silicon, Si, 14, 14 and 14
12. Chlorine, 17, 35 and 17
13. Lithium, Li, 3, 7 and 3
14. Carbon, C, 6, 6 and 6
15. Fluorine, 9, 9 and 10
16. Magnesium, 24, 12 and 12
17. Phosphorus, 15, 31 and 15
18. Argon, Ar, 40, 18 and 18
19. Calcium, 20, 40, 20, 20 and 20
20. Potassium, K, 19, 39, 19, 20 and 19
Hope it helps, the element names are to help you with locating it, the numbers are to fill in.
