Modern Periodic Table of Elements

DOT Hazard Class

1 H Hydrogen 2.1

2 He Helium 2.2

3 Li Lithium 4.3

4 Be Beryllium 6.1

7 N Nitrogen 2.2

9 F Fluorine 2.3

11 Na Sodium 4.3

12 Mg Magnesium 4.1

13 Al Aluminium 4.3

14 Si Silicon 4.1

15 P Phosphorus 4.1

18 Ar Argon 2.2

19 K Potassium 4.3

20 Ca Calcium 4.2

21 Sc Scandium 4.1

22 Ti Titanium 4.2

23 V Vanadium 4.1

24 Cr Chromium 4.1

25 Mn Manganese 4.1

27 Co Cobalt 4.1

28 Ni Nickel 4.1

29 Cu Copper 4.1

32 Ge Germanium 4.1

33 As Arsenic 61

34 Se Selenium 6.1

35 Br Bromine 8

36 Kr Krypton 2.2

37 Rb Rubidium 4.3

38 Sr Strontium 4.2

39 Y Yttrium 4.1

40 Zr Zirconium 4.2

42 Mo Molybdenum 4.1

44 Ru Ruthenium 4.1

45 Rh Rhodium 4.1

46 Pd Palladium 4.2

48 Cd Cadmium 6.1

49 In Indium 4.1

52 Te Tellurium 6.1

54 Xe Xenon 2.2

55 Cs Caesium 4.3

56 Ba Barium 4.3

57 La Lanthanum 4.1

58 Ce Cerium 4.1

62 Sm Samarium 4.1

67 Ho Holmium 4.1

69 Tm Thulium 4.1

71 Lu Lutetium 4.1

72 Hf Hafnium 4.2

73 Ta Tantalum 4.1

74 W Tungsten 4.1

76 Os Osmium 4.1

77 Ir Iridium 4.1

78 Pt Platinum 4.1

80 Hg Mercury 8

83 Bi Bismuth 6.1

90 Th Thorium 7