Periodic Table of Elements 2025 | Chemistry Tool

I

II

III

IV

V

VI

VII

VIII

1

2

3

4

5

6

7

1

H

Hydrogen

1

2

He

Helium

4

3

Li

Lithium

7

4

Be

Beryllium

9

5

B

Boron

11

6

C

Carbon

12

7

N

Nitrogen

14

8

O

Oxygen

16

9

F

Fluorine

19

10

Ne

Neon

20

11

Na

Sodium

23

12

Mg

Magnesium

24

13

Al

Aluminium

27

14

Si

Silicon

28

15

P

Phosphorus

31

16

S

Sulfur

32

17

Cl

Chlorine

35.5

18

Ar

Argon

40

19

K

Potassium

39

20

Ca

Calcium

40

21

Sc

Scandium

45

22

Ti

Titanium

48

23

V

Vanadium

51

24

Cr

Chromium

52

25

Mn

Manganese

55

26

Fe

Iron

56

27

Co

Cobalt

59

28

Ni

Nickel

59

29

Cu

Copper

64

30

Zn

Zinc

65

31

Ga

Gallium

70

32

Ge

Germanium

73

33

As

Arsenic

75

34

Se

Selenium

79

35

Br

Bromine

80

36

Kr

Krypton

84

37

Rb

Rubidium

85

38

Sr

Strontium

88

39

Y

Yttrium

89

40

Zr

Zirconium

91

41

Nb

Niobium

93

42

Mo

Molybdenum

96

43

Tc

Technetium

98

44

Ru

Ruthenium

101

45

Rh

Rhodium

103

46

Pd

Palladium

106

47

Ag

Silver

108

48

Cd

Cadmium

112

49

In

Indium

115

50

Sn

Tin

119

51

Sb

Antimony

122

52

Te

Tellurium

128

53

I

Iodine

127

54

Xe

Xenon

131

55

Cs

Cesium

133

56

Ba

Barium

137

57-71

La-Lu

72

Hf

Hafnium

178

73

Ta

Tantalum

181

74

W

Tungsten

184

75

Re

Rhenium

186

76

Os

Osmium

190

77

Ir

Iridium

192

78

Pt

Platinum

195

79

Au

Gold

197

80

Hg

Mercury

201

81

Tl

Thallium

204

82

Pb

Lead

207

83

Bi

Bismuth

209

84

Po

Polonium

209

85

At

Astatine

210

86

Rn

Radon

222

87

Fr

Francium

223

88

Ra

Radium

226

89-103

Ac-Lr

104

Rf

Rutherfordium

267

105

Db

Dubnium

268

106

Sg

Seaborgium

271

107

Bh

Bohrium

272

108

Hs

Hassium

277

109

Mt

Meitnerium

276

110

Ds

Darmstadtium

281

111

Rg

Roentgenium

280

112

Cn

Copernicium

285

113

Nh

Nihonium

(286)

114

Fl

Flerovium

(289)

115

Mc

Moscovium

(290)

116

Lv

Livermorium

(293)

117

Ts

Tennessine

(294)

118

Og

Oganesson

(294)

Lanthanoids

57

La

Lanthanum

139

58

Ce

Cerium

140

59

Pr

Praseodymium

141

60

Nd

Neodymium

144

61

Pm

Promethium

145

62

Sm

Samarium

150

63

Eu

Europium

152

64

Gd

Gadolinium

157

65

Tb

Terbium

159

66

Dy

Dysprosium

163

67

Ho

Holmium

165

68

Er

Erbium

167

69

Tm

Thulium

169

70

Yb

Ytterbium

173

71

Lu

Lutetium

175

Actinoids

89

Ac

Actinium

227

90

Th

Thorium

232

91

Pa

Protactinium

231

92

U

Uranium

238

93

Np

Neptunium

237

94

Pu

Plutonium

244

95

Am

Americium

243

96

Cm

Curium

247

97

Bk

Berkelium

247

98

Cf

Californium

251

99

Es

Einsteinium

252

100

Fm

Fermium

257

101

Md

Mendelevium

258

102

No

Nobelium

259

103

Lr

Lawrencium

262

a X b

a = Atomic number
X = Element symbol
b = Relative atomic mass

Alkali metals

Non-metals

Alkaline metals

Transition metals

Post-transition metals

Noble gases

Metalloids

Lanthanoids

Actinoids

Unknown properties