1. H Hydrogen

2. He Helium

3. Li Lithium

4. Be
Beryllium

5. B
Boron

6. I
Iodine

7. C
Carbon

8. N
Nitrogen

9. O
Oxygen

10. F
Fluorine

11. Ne
Neon

12. Na
Sodium

13. Mg
Magnesium

14. Al
Aluminum

15. Si
Silicon

16. P
Phosphorus

17. S
Sulfur

18. Cl
Chlorine

19. Ar
Argon

20. K
Potassium

21. Ca
Calcium

22. Sc
Scandium

23. Ti
Titanium

24. V
Vanadium

25. Cr
Chromium

26. Mn
Manganese

27. Fe
Iron

28. Co
Cobalt

29. Ni
Nickel

30. Cu
Copper

31. Zn
Zinc

32. Ge
Germanium

33. As
Arsenic

34. Se
Selenium

35. Br
Bromine

36. Kr
Krypton

37. Ag
Silver

38. Hg
Mercury

39. Au
Gold

40. Zr
Zirconium

41. Sn
tin

42. Rn
Radon

43. Pb
lead

44. Pt
platinum

45. Nb
Niobium

46. Mo
molybdenum

47. Pd
palladium

48. Cd
cadmium

49. In
indium

50. W
tungsten

51. Sb
antimony

52. OH
Hydroxide
OH-1

53. CO3
Carbonate
CO3-2

54. NO3
Nitrate
NO3-1

55. PO4
Phosphate
PO4-3

56. SO4
Sulfate
SO4-2

57. NH4
Ammonium
NH4+1