Number  

Symbol  

Name  

Atomic Weight  

Melting Point,  ^oC

Boiling Point,  ^oC

Density,  g/cm³

1

H

Hydrogen

1.0079

-259

-253

0.0000899

2

He

Helium

4.0026

-272

-269

0.0001785

3

Li

Lithium

6.9410

180

1347

0.534

4

Be

Beryllium

9.0122

1278

2970

1.848

5

B

Boron

10.811

2300

2550

2.34

6

C

Carbon

12.0107

3500

4827

2.26

7

N

Nitrogen

14.0067

-210

-196

0.0012506

8

O

Oxygen

15.9994

-218

-183

0.001429

9

F

Fluorine

18.9984

-220

-188

0.001696

10

Ne

Neon

20.1797

-249

-246

0.0009

11

Na

Sodium

22.9897

98

883

0.971

12

Mg

Magnesium

24.305

639

1090

1.738

13

Al

Aluminum

26.9815

660

2467

2.702

14

Si

Silicon

28.0855

1410

2355

2.33

15

P

Phosphorus

30.9738

44

280

1.82

16

S

Sulfur

32.065

113

445

2.07

17

Cl

Chlorine

35.453

-101

-35

0.003214

18

Ar

Argon

39.948

-189

-186

0.0017824

19

K

Potassium

39.0983

64

774

0.86

20

Ca

Calcium

40.078

839

1484

1.55

21

Sc

Scandium

44.9559

1539

2832

2.99

22

Ti

Titanium

47.867

1660

3287

4.54

23

V

Vanadium

50.9415

1890

3380

6.11

24

Cr

Chromium

51.9961

1857

2672

7.19

25

Mn

Manganese

54.938

1245

1962

7.43

26

Fe

Iron

55.845

1535

2750

7.87

27

Co

Cobalt

58.9332

1495

2870

8.9

28

Ni

Nickel

58.6934

1453

2732

8.9

29

Cu

Copper

63.546

1083

2567

8.96

30

Zn

Zinc

65.39

420

907

7.13

31

Ga

Gallium

69.723

30

2403

5.91

32

Ge

Germanium

72.64

937

2830

5.32

33

As

Arsenic

74.9216

81

613

5.72

34

Se

Selenium

78.96

217

685

4.79

35

Br

Bromine

79.904

-7

59

3.12

36

Kr

Krypton

83.8

-157

-153

0.00375

37

Rb

Rubidium

85.4678

39

688

1.63

38

Sr

Strontium

87.62

769

1384

2.54

39

Y

Yttrium

88.9059

1523

3337

4.47

40

Zr

Zirconium

91.224

1852

4377

6.51

41

Nb

Niobium

92.9064

2468

4927

8.57

42

Mo

Molybdenum

95.94

2617

4612

10.22

43

Tc

Technetium

98

2200

4877

11.5

44

Ru

Ruthenium

101.07

2250

3900

12.37

45

Rh

Rhodium

102.9055

1966

3727

12.41

46

Pd

Palladium

106.42

1552

2927

12.02

47

Ag

Silver

107.8682

962

2212

10.5

48

Cd

Cadmium

112.411

321

765

8.65

49

In

Indium

114.818

157

2000

7.31

50

Sn

Tin

118.71

232

2270

7.31

51

Sb

Antimony

121.76

630

1750

6.68

52

Te

Tellurium

127.6

449

990

6.24

53

I

Iodine

126.9045

114

184

4.93

54

Xe

Xenon

131.293

-112

-108

0.0059

55

Cs

Cesium

132.9055

29

678

1.873

56

Ba

Barium

137.327

725

1140

3.59

57

La

Lanthanum

138.9055

920

3469

6.15

58

Ce

Cerium

140.116

795

3257

6.77

59

Pr

Praseodymium

140.9077

935

3127

6.77

60

Nd

Neodymium

144.24

1010

3127

7.01

61

Pm

Promethium

145

1100

3000

7.3

62

Sm

Samarium

150.36

1072

1900

7.52

63

Eu

Europium

151.964

822

1597

5.24

64

Gd

Gadolinium

157.25

1311

3233

7.9

65

Tb

Terbium

158.9253

1360

3041

8.23

66

Dy

Dysprosium

162.5

1412

2562

8.55

67

Ho

Holmium

164.9303

1470

2720

8.8

68

Er

Erbium

167.259

1522

2510

9.07

69

Tm

Thulium

168.9342

1545

1727

9.32

70

Yb

Ytterbium

173.04

824

1466

6.9

71

Lu

Lutetium

174.967

1656

3315

9.84

72

Hf

Hafnium

178.49

2150

5400

13.31

73

Ta

Tantalum

180.9479

2996

5425

16.65

74

W

Tungsten

183.84

3410

5660

19.35

75

Re

Rhenium

186.207

3180

5627

21.04

76

Os

Osmium

190.23

3045

5027

22.6

77

Ir

Iridium

192.217

2410

4527

22.4

78

Pt

Platinum

195.078

1772

3827

21.45

79

Au

Gold

196.9665

1064

2807

19.32

80

Hg

Mercury

200.59

-39

357

13.55

81

Tl

Thallium

204.3833

303

1457

11.85

82

Pb

Lead

207.2

327

1740

11.35

83

Bi

Bismuth

208.9804

271

1560

9.75

84

Po

Polonium

209

254

962

9.3

85

At

Astatine

210

302

337

~7

86

Rn

Radon

222

-71

-62

0.00973

87

Fr

Francium

223

27

677

1.87

88

Ra

Radium

226

700

1737

5.5

89

Ac

Actinium

227

1050

3200

10.07

90

Th

Thorium

232.0381

1750

4790

11.72

91

Pa

Protactinium

231.0359

1568

-

15.4

92

U

Uranium

238.0289

1132

3818

18.95

93

Np

Neptunium

237

640

3902

20.2

94

Pu

Plutonium

244

640

3235

19.84

95

Am

Americium

243

994

2607

13.67

96

Cm

Curium

247

1340

-

13.5

97

Bk

Berkelium

247

986

-

14.78

98

Cf

Californium

251

900

-

15.1

99

Es

Einsteinium

252

860

-

~13.5

100

Fm

Fermium

257

1527

-

-

101

Md

Mendelevium

258

-

-

-

102

No

Nobelium

259

827

-

-

103

Lr

Lawrencium

262

1627

-

~9.84

104

Rf

Rutherfordium

261

2127

5527

18.1

105

Db

Dubnium

262

-

-

~39

106

Sg

Seaborgium

266

-

-

~35

107

Bh

Bohrium

264

-

-

~37

108

Hs

Hassium

277

-

-

~41

109

Mt

Meitnerium

268

-

-

~35