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

© 2015 Todd Helmenstinesciencenotes.org

1

HHydrogen

1.008

3

LiLithium

6.941

4

BeBeryllium

9.012

11

NaSodium

22.990

12

MgMagnesium

24.305

19

KPotassium

39.098

20

CaCalcium

40.078

21

ScScandium

44.956

22

TiTitanium

47.867

23

VVanadium

50.942

24

CrChromium

51.996

25

MnManganese

54.938

26

FeIron55.845

27

CoCobalt58.933

28

NiNickel58.693

29

CuCopper

63.546

30

ZnZinc65.38

31

GaGallium

69.723

13

AlAluminum

26.982

5

BBoron10.811

32

GeGermanium

72.631

14

SiSilicon28.086

6

CCarbon

12.011

33

AsArsenic

74.922

15

PPhosphorus

30.974

7

NNitrogen

14.007

34

SeSelenium

78.972

16

SSulfur32.066

8

OOxygen

15.999

35

BrBromine

79.904

17

ClChlorine

35.453

9

FFluorine

18.998

36

KrKrypton

84.798

18

ArArgon39.948

10

NeNeon20.180

2

HeHelium

4.003

37

RbRubidium

84.468

38

SrStrontium

87.62

39

YYttrium

88.906

40

ZrZirconium

91.224

41

NbNiobium

92.906

42

MoMolybdenum

95.95

43

TcTechnetium

98.907

44

RuRuthenium

101.07

45

RhRhodium

102.906

46

PdPalladium

106.42

47

AgSilver107.868

48

CdCadmium

112.414

49

InIndium114.818

50

SnTin

118.711

51

SbAntimony

121.760

52

TeTellurium

127.6

53

IIodine126.904

54

XeXenon131.294

55

CsCesium132.905

56

BaBarium137.328

57-71 72

HfHafnium

178.49

73

TaTantalum

180.948

74

WTungsten

183.84

75

ReRhenium

186.207

76

OsOsmium

190.23

77

IrIridium192.217

78

PtPlatinum

195.085

79

AuGold196.967

80

HgMercury

200.592

81

TlThallium

204.383

82

PbLead207.2

83

BiBismuth

208.980

84

PoPolonium

[208.982]

85

AtAstatine

209.987

86

RnRadon222.018

87

FrFrancium

223.020

88

RaRadium226.025

89-103

57

LaLanthanum

138.905

58

CeCerium140.116

59

PrPraseodymium

140.908

60

NdNeodymium

144.243

61

PmPromethium

144.913

62

SmSamarium

150.36

63

EuEuropium

151.964

64

GdGadolinium

157.25

65

TbTerbium

158.925

66

DyDysprosium

162.500

67

HoHolmium

164.930

68

ErErbium167.259

69

TmThulium

168.934

70

YbYtterbium

173.055

71

LuLutetium

174.967

89

AcActinium

227.028

AlkaliMetal

AlkalineEarth

TransitionMetal

BasicMetal Semimetal Nonmetal Halogen Noble

Gas Lanthanide Actinide

90

ThThorium

232.038

91

PaProtactinium

231.036

92

UUranium

238.029

93

NpNeptunium

237.048

94

PuPlutonium

244.064

95

AmAmericium

243.061

96

CmCurium247.070

97

BkBerkelium

247.070

98

CfCalifornium

251.080

99

EsEinsteinium

[254]

100

FmFermium

257.095

101

MdMendelevium

258.1

102

NoNobelium

259.101

103

LrLawrencium

[262]

104

RfRutherfordium

[261]

105

DbDubnium

[262]

106

SgSeaborgium

[266]

107

BhBohrium

[264]

108

HsHassium

[269]

109

MtMeitnerium

[268]

110

DsDarmstadtium

[269]

111

RgRoentgenium

[272]

112

CnCopernicium

[277]

113

UutUnuntrium

unknown

114

FlFlerovium

[289]

115

UupUnunpentium

unknown

116

LvLivermorium

[298]

117

UusUnunseptium

unknown

118

UuoUnunoctium

unknown

H20.0899

0.534 1.85

0.968 1.738

0.89 1.55 2.985 4.506 6.0 7.15 7.21 7.86 8.90 8.908 8.96 7.14 5.91

2.70

2.34

5.323

2.33

graphite2.267

5.727

white1.823

N21.251

alpha4.39

alpha2.08

O21.429

Br23.1028

Cl23.2

F21.7

3.749

1.784

0.9002

0.1786

1.532 2.64 4.472 6.52 8.57 10.28 11 12.45 12.41 12.023 10.49 8.65 7.31 white7.265

6.697 6.24 I24.933

5.894

1.93 3.51 13.31 16.69 19.25 21.02 22.59 22.56 22.45 19.3 13.534 11.85 11.34 9.78 alpha9.196

unknown 9.73

unknown 5.5

6.162 6.770 6.77 7.01 7.26 7.52 5.244 7.90 8.23 8.540 8.79 9.066 9.32 6.90 9.841

10 11.7 15.37 19.1 20.2 19.816 12 13.51 14.78 15.1 8.84 unknown unknown unknown unknown

unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown unknown

AtomicNumber

Density

Symbol

Atomic MassName

Density values are at or near room temperature.If more than one allotrope, allotrope is listed with density.

Element symbol represents state at room temperature.

Solid, Liquid or Gas densities are g/L. All other densities are g/cm3Width of color bar is density relative to Osmium (densest element)