ATOMIC WEIGHT Elements (1-40)

Hydrogen

1.0080

Helium (2)

4.0026

Lithium (3)

6.94 (hundreths)

Beryllium (4)

9.0122

Boron (5)

10.81 (hundreths)

Carbon (6)

12.011 (thousandths)

Nitrogen (7)

14.007 (thousandths)

Oxygen (8)

15.999 (thousandths)

Fluorine (9)

18.998 (thousandths)

Neon (10)

20.180 (Hundredths)

Sodium (11)

22.990 (Hundredths)

Magnesium (12)

24.305 (thousandths)

Aluminum (13)

26.982 (thousandths)

Silicon (14)

28.085 (thousandths)

Phosphorus (15)

30.974 (thousandths)

Sulfur (16)

32.06 (hundreths)

Chlorine (17)

35.45 (hundreths)

Argon (18)

39.95 (hundreths)

Potassium (19)

39.098 (thousandths)

Calcium (20)

40.078 (thousandths)

Scandium (21)

44.956 (thousandths)

Titanium (22)

47.867 (thousandths)

Vanadium (23)

50.942 (thousandths)

Chromium (24)

51.996 (thousandths)

Manganese (25)

54.938 (thousandths)

Iron (26)

55.845 (thousandths)

Cobalt (27)

58.933 (thousandths)

Nickel (28)

58.693 (thousandths)

Copper (29)

63.546 (thousandths)

Zinc (30)

65.38 (hundreths)

Gallium (31)

69.723 (thousandths)

Germanium (32)

72.630 (thousandths)

Arsenic (33)

74.922 (thousandths)

Selenium (34)

78.971 (thousandths)

Bromine (35)

79.904 (thousandths)

Krypton (36)

83.798 (thousandths)

Rubidium (37)

85.468 (thousandths)

Strontium (38)

87.62 (hundredths)

Yttrium (39)

88.906 (thousandths)

Zirconium (40)

91.224 (thousandths)