1IA1A

18VIIIA8A

2IIA2A

13IIIA3A

14IVA4A

15VA5A

16VIA6A

17VIIA7A

3IIIB3B

4IVB4B

5VB5B

6VIB6B

7VIIB7B

8 9VIII8

10 11IB1B

12IIB2B

Periodic Table of the Elements

LanthanideSeries

ActinideSeries

© 2013 Todd Helmenstinechemistry.about.comsciencenotes.org

1H

Hydrogen1.008

3Li

Lithium6.941

4Be

Beryllium9.012

11NaSodium22.990

12Mg

Magnesium24.305

19K

Potassium39.098

20CaCalcium40.078

21Sc

Scandium44.956

22Ti

Titanium47.88

23V

Vanadium50.942

24Cr

Chromium51.996

25Mn

Manganese54.938

26Fe

Iron55.933

27CoCobalt58.933

28NiNickel58.693

29CuCopper63.546

30Zn

Zinc65.39

31GaGallium69.732

13Al

Aluminum26.982

5B

Boron10.811

32Ge

Germanium72.61

14SiSilicon28.086

6C

Carbon12.011

33AsArsenic74.922

15P

Phosphorus30.974

7N

Nitrogen14.007

34Se

Selenium78.972

16S

Sulfur32.066

8O

Oxygen15.999

35Br

Bromine79.904

17Cl

Chlorine35.453

9F

Fluorine18.998

36Kr

Krypton84.80

18ArArgon39.948

10Ne

Neon20.180

2HeHelium4.003

37Rb

Rubidium84.468

38Sr

Strontium87.62

39Y

Yttrium88.906

40Zr

Zirconium91.224

41NbNiobium92.906

42Mo

Molybdenum95.95

43Tc

Technetium98.907

44Ru

Ruthenium101.07

45RhRhodium102.906

46Pd

Palladium106.42

47Ag

Silver107.868

48Cd

Cadmium112.411

49In

Indium114.818

50Sn

Tin118.71

51Sb

Antimony121.760

52Te

Tellurium127.6

53I

Iodine126.904

54XeXenon131.29

55CsCesium132.905

56BaBarium137.327

57-71 72Hf

Hafnium178.49

73Ta

Tantalum180.948

74W

Tungsten183.85

75ReRhenium186.207

76OsOsmium190.23

77Ir

Iridium192.22

78Pt

Platinum195.08

79Au

Gold196.967

80HgMercury200.59

81Tl

Thallium204.383

82Pb

Lead207.2

83Bi

Bismuth208.980

84Po

Polonium[208.982]

85At

Astatine209.987

86RnRadon222.018

87Fr

Francium223.020

88RaRadium226.025

89-103

57La

Lanthanum138.906

58CeCerium140.115

59Pr

Praseodymium140.908

60Nd

Neodymium144.24

61Pm

Promethium144.913

62SmSamarium

150.36

63Eu

Europium151.966

64Gd

Gadolinium157.25

65TbTerbium158.925

66Dy

Dysprosium162.50

67HoHolmium164.930

68ErErbium167.26

69TmThulium168.934

70Yb

Ytterbium173.04

71Lu

Lutetium174.967

89Ac

Actinium227.028

AlkaliMetal

AlkalineEarth

TransitionMetal

BasicMetal Semimetal Nonmetal Halogen Noble

Gas Lanthanide Actinide

90ThThorium232.038

91Pa

Protactinium231.036

92U

Uranium238.029

93Np

Neptunium237.048

94Pu

Plutonium244.064

95Am

Americium243.061

96Cm

Curium247.070

97Bk

Berkelium247.070

98Cf

Californium251.080

99Es

Einsteinium[254]

100FmFermium257.095

101Md

Mendelevium258.1

102No

Nobelium259.101

103Lr

Lawrencium[262]

104Rf

Rutherfordium[261]

105DbDubnium

[262]

106Sg

Seaborgium[266]

107BhBohrium

[264]

108HsHassium

[269]

109Mt

Meitnerium[268]

110Ds

Darmstadtium[269]

111Rg

Roentgenium[272]

112Cn

Copernicium[277]

113UutUnuntriumunknown

114Fl

Flerovium[289]

115Uup

Ununpentiumunknown

116Lv

Livermorium[298]

117Uus

Ununseptiumunknown

118UuoUnunoctium

unknown

AtomicNumber

Symbol

Atomic Mass

Name

ValenceCharge

+1 0

+1

+1

+1

+1

+1

1

+2

+2

+2

+2

+2

2

+3

+3

+4

+4

+4

+4

+5,+4,+3

+5

+5

unk

+6,+3,+2

+6,+4

+6,+4

unk

+7,+4,+2

+7,+4

+5,+4,+3

unk

+3,+2

+4,+3

+4

unk

+3,+2

+3

+4,+3

unk

+2

+4,+2

+4,+2

unk

+2,+1

+1

+3

unk

+2

+2

+2,+1

unk

+3

+3

+3

+3

+3,+1

unk

+4,-4

+4

+4

+2,-4

+2

unk

+5,-3

+5,+3,-3

+5,+3

+3

+3

unk

-2

6,-2

+4,-2

+4

+4

unk

-1

-1

+5,-1

+5,-1

-1

unk

0

0

0

0

0

unk

+3 +3 +3 +3 +3 +3 +3 +3 +3 +3 +3 +3 +3 +3 +3

+3 +4 +5 +6 +7 +7,+4 +3 +3 +3 +3 +3 +3 +3 +2 +3