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	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
1	H Hydrogène 1.007975 1s¹																	He Hélium 4.002502 1s²
2	Li Lithium 6.9395 [He] 2s¹	Be Beryllium 9.0121831 [He] 2s²											B Bore 10.8135 [He] 2s² 2p¹	C Carbone 12.0106 [He] 2s² 2p²	N Azote 14.006855 [He] 2s² 2p³	O Oxygène 15.99940 [He] 2s² 2p⁴	F Fluor 18.99840316 [He] 2s² 2p⁵	Ne Néon 20.1797 [He] 2s² 2p⁶
3	Na Sodium 22.98976928 [Ne] 3s¹	Mg Magnésium 24.3055 [Ne] 3s²											Al Aluminium 26.9815385 [Ne] 3s² 3p¹	Si Silicium 28.085 [Ne] 3s² 3p²	P Phosphore 30.97376200 [Ne] 3s² 3p³	S Soufre 32.0675 [Ne] 3s² 3p⁴	Cl Chlore 35.4515 [Ne] 3s² 3p⁵	Ar Argon 39.948 [Ne] 3s² 3p⁶
4	K Potassium 39.0983 [Ar] 4s¹	Ca Calcium 40.078 [Ar] 4s²	Sc Scandium 44.955908 [Ar] 3d¹ 4s²	Ti Titane 47.867 [Ar] 3d² 4s²	V Vanadium 50.9415 [Ar] 3d³ 4s²	Cr Chrome 51.9961 [Ar] 3d⁵ 4s¹	Mn Manganèse 54.938044 [Ar] 3d⁵ 4s²	Fe Fer 55.845 [Ar] 3d⁶ 4s²	Co Cobalt 58.933194 [Ar] 3d⁷ 4s²	Ni Nickel 58.6934 [Ar] 3d⁸ 4s²	Cu Cuivre 63.546 [Ar] 3d¹⁰ 4s¹	Zn Zinc 65.38 [Ar] 3d¹⁰ 4s²	Ga Gallium 69.723 [Ar] 3d¹⁰ 4s² 4p¹	Ge Germanium 72.630 [Ar] 3d¹⁰ 4s² 4p²	As Arsenic 74.921595 [Ar] 3d¹⁰ 4s² 4p³	Se Sélénium 78.971 [Ar] 3d¹⁰ 4s² 4p⁴	Br Brome 79.904 [Ar] 3d¹⁰ 4s² 4p⁵	Kr Krypton 83.798 [Ar] 3d¹⁰ 4s² 4p⁶
5	Rb Rubidium 85.4678 [Kr] 5s¹	Sr Strontium 87.62 [Kr] 5s²	Y Yttrium 88.90584 [Kr] 4d¹ 5s²	Zr Zirconium 91.224 [Kr] 4d² 5s²	Nb Niobium 92.90637 [Kr] 4d⁴ 5s¹	Mo Molybdène 95.95 [Kr] 4d⁵ 5s¹	Tc Technétium [98] [Kr] 4d⁵ 5s²	Ru Ruthénium 101.07 [Kr] 4d⁷ 5s¹	Rh Rhodium 102.90550 [Kr] 4d⁸ 5s¹	Pd Palladium 106.42 [Kr] 4d¹⁰	Ag Argent 107.8682 [Kr] 4d¹⁰ 5s¹	Cd Cadmium 112.414 [Kr] 4d¹⁰ 5s²	In Indium 114.818 [Kr] 4d¹⁰ 5s² 5p¹	Sn Étain 118.710 [Kr] 4d¹⁰ 5s² 5p²	Sb Antimoine 121.760 [Kr] 4d¹⁰ 5s² 5p³	Te Tellure 127.60 [Kr] 4d¹⁰ 5s² 5p⁴	I Iode 126.90447 [Kr] 4d¹⁰ 5s² 5p⁵	Xe Xénon 131.293 [Kr] 4d¹⁰ 5s² 5p⁶
6	Cs Césium 132.90545196 [Xe] 6s¹	Ba Baryum 137.327 [Xe] 6s²	* Lanthanides	Hf Hafnium 178.49 [Xe] 4f¹⁴ 5d² 6s²	Ta Tantale 180.94788 [Xe] 4f¹⁴ 5d³ 6s²	W Tungstène 183.84 [Xe] 4f¹⁴ 5d⁴ 6s²	Re Rhénium 186.207 [Xe] 4f¹⁴ 5d⁵ 6s²	Os Osmium 190.23 [Xe] 4f¹⁴ 5d⁶ 6s²	Ir Iridium 192.217 [Xe] 4f¹⁴ 5d⁷ 6s²	Pt Platine 195.084 [Xe] 4f¹⁴ 5d⁹ 6s¹	Au Or 196.966569 [Xe] 4f¹⁴ 5d¹⁰ 6s¹	Hg Mercure 200.592 [Xe] 4f¹⁴ 5d¹⁰ 6s²	Tl Thallium 204.3835 [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹	Pb Plomb 207.2 [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p²	Bi Bismuth 208.98040 [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³	Po Polonium [209] [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴	At Astate [210] [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵	Rn Radon [222] [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶
7	Fr Francium [223] [Rn] 7s¹	Ra Radium [226] [Rn] 7s²	* * Actinides	Rf Rutherfordium [Xe] 5f¹⁴ 6d² 7s² [267]	Db Dubnium [268] [Xe] 5f¹⁴ 6d³ 7s²	Sg Seaborgium [269] [Xe] 5f¹⁴ 6d⁴ 7s²	Bh Bohrium [270] [Xe] 5f¹⁴ 6d⁵ 7s²	Hs Hassium [277] [Xe] 5f¹⁴ 6d⁶ 7s²	Mt Meitnérium [278] [Xe] 5f¹⁴ 6d⁷ 7s²	Ds Darmstadtium [281] [Xe] 5f¹⁴ 6d⁸ 7s²	Rg Roentgenium [282] [Xe] 5f¹⁴ 6d⁹ 7s²	Cn Copernicium [285] [Rn] 5f¹⁴ 6d¹⁰ 7s²	Nh Nihonium [286] [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹	Fl Flérovium [289] [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p²	Mc Moscovium [289] [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³	Lv Livermorium [293] [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁴	Ts Tenesse [294] [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵	Og Oganesson [294] [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶

		*	La Lanthane 138.90547 [Xe] 5d¹ 6s²	Ce Cérium 140.116 [Xe] 4f¹ 5d¹ 6s²	Pr Praséodyme 140.90766 [Xe] 4f³ 6s²	Nd Néodyme 144.242 [Xe] 4f⁴ 6s²	Pm Prométhium [145] [Xe] 4f⁵ 6s²	Sm Samarium 150.36 [Xe] 4f⁶ 6s²	Eu Europium 151.964 [Xe] 4f⁷ 6s²	Gd Gadolinium 157.25 [Xe] 4f⁷ 5d¹ 6s²	Tb Terbium 158.92535 [Xe] 4f⁹ 6s²	Dy Dysprosium 162.500 [Xe] 4f¹⁰ 6s²	Ho Holmium 164.93033 [Xe] 4f¹¹ 6s²	Er Erbium 167.259 [Xe] 4f¹² 6s²	Tm Thulium 168.93422 [Xe] 4f¹³ 6s²	Yb Ytterbium 173.045 [Xe] 4f¹⁴ 6s²	Lu Lutécium 174.9668 [Xe] 4f¹⁴ 5d¹ 6s²
		* *	Ac Actinium [227] [Rn] 6d¹ 7s²	Th Thorium 232.03806 [Rn] 6d² 7s²	Pa Protactinium 231.03588 [Rn] 5f² 6d¹ 7s²	U Uranium 238.02891 [Rn] 5f³ 6d¹ 7s²	Np Neptunium [237] [Rn] 5f⁴ 6d¹ 7s²	Pu Plutonium [244] [Rn] 5f⁶ 7s²	Am Américium [243] [Rn] 5f⁷ 7s²	Cm Curium [247] [Rn] 5f⁶ 6d¹ 7s²	Bk Berkélium [247] [Rn] 5f⁹ 7s²	Cf Californium [251] [Rn] 5f¹⁰ 7s²	Es Einsteinium [252] [Rn] 5f¹¹ 7s²	Fm Fermium [257] [Rn] 5f¹² 7s²	Md Mendélévium [258] [Rn] 5f¹³ 7s²	No Nobélium [259] [Rn] 5f¹⁴ 7s²	Lr Lawrencium [266] [Rn] 5f¹⁴ 7s² 7p¹

H

Hydrogène

1.007975

1s¹

He

Hélium

4.002502

1s²

Li

Lithium

6.9395

[He] 2s¹

Be

Beryllium

9.0121831

[He] 2s²

B

Bore

10.8135

[He] 2s² 2p¹

C

Carbone

12.0106

[He] 2s² 2p²

N

Azote

14.006855

[He] 2s² 2p³

O

Oxygène

15.99940

[He] 2s² 2p⁴

F

Fluor

18.99840316

[He] 2s² 2p⁵

Ne

Néon

20.1797

[He] 2s² 2p⁶

Na

Sodium

22.98976928

[Ne] 3s¹

Mg

Magnésium

24.3055

[Ne] 3s²

Al

Aluminium

26.9815385

[Ne] 3s² 3p¹

Si

Silicium

28.085

[Ne] 3s² 3p²

P

Phosphore

30.97376200

[Ne] 3s² 3p³

S

Soufre

32.0675

[Ne] 3s² 3p⁴

Cl

Chlore

35.4515

[Ne] 3s² 3p⁵

Ar

Argon

39.948

[Ne] 3s² 3p⁶

K

Potassium

39.0983

[Ar] 4s¹

Ca

Calcium

40.078

[Ar] 4s²

Sc

Scandium

44.955908

[Ar] 3d¹ 4s²

Ti

Titane

47.867

[Ar] 3d² 4s²

V

Vanadium

50.9415

[Ar] 3d³ 4s²

Cr

Chrome

51.9961

[Ar] 3d⁵ 4s¹

Mn

Manganèse

54.938044

[Ar] 3d⁵ 4s²

Fe

Fer

55.845

[Ar] 3d⁶ 4s²

Co

Cobalt

58.933194

[Ar] 3d⁷ 4s²

Ni

Nickel

58.6934

[Ar] 3d⁸ 4s²

Cu

Cuivre

63.546

[Ar] 3d¹⁰ 4s¹

Zn

Zinc

65.38

[Ar] 3d¹⁰ 4s²

Ga

Gallium

69.723

[Ar] 3d¹⁰ 4s² 4p¹

Ge

Germanium

72.630

[Ar] 3d¹⁰ 4s² 4p²

As

Arsenic

74.921595

[Ar] 3d¹⁰ 4s² 4p³

Se

Sélénium

78.971

[Ar] 3d¹⁰ 4s² 4p⁴

Br

Brome

79.904

[Ar] 3d¹⁰ 4s² 4p⁵

Kr

Krypton

83.798

[Ar] 3d¹⁰ 4s² 4p⁶

Rb

Rubidium

85.4678

[Kr] 5s¹

Sr

Strontium

87.62

[Kr] 5s²

Y

Yttrium

88.90584

[Kr] 4d¹ 5s²

Zr

Zirconium

91.224

[Kr] 4d² 5s²

Nb

Niobium

92.90637

[Kr] 4d⁴ 5s¹

Mo

Molybdène

95.95

[Kr] 4d⁵ 5s¹

Tc

Technétium

[98]

[Kr] 4d⁵ 5s²

Ru

Ruthénium

101.07

[Kr] 4d⁷ 5s¹

Rh

Rhodium

102.90550

[Kr] 4d⁸ 5s¹

Pd

Palladium

106.42

[Kr] 4d¹⁰

Ag

Argent

107.8682

[Kr] 4d¹⁰ 5s¹

Cd

Cadmium

112.414

[Kr] 4d¹⁰ 5s²

In

Indium

114.818

[Kr] 4d¹⁰ 5s² 5p¹

Sn

Étain

118.710

[Kr] 4d¹⁰ 5s² 5p²

Sb

Antimoine

121.760

[Kr] 4d¹⁰ 5s² 5p³

Te

Tellure

127.60

[Kr] 4d¹⁰ 5s² 5p⁴

I

Iode

126.90447

[Kr] 4d¹⁰ 5s² 5p⁵

Xe

Xénon

131.293

[Kr] 4d¹⁰ 5s² 5p⁶

Cs

Césium

132.90545196

[Xe] 6s¹

Ba

Baryum

137.327

[Xe] 6s²

*

Lanthanides

Hf

Hafnium

178.49

[Xe] 4f¹⁴ 5d² 6s²

Ta

Tantale

180.94788

[Xe] 4f¹⁴ 5d³ 6s²

W

Tungstène

183.84

[Xe] 4f¹⁴ 5d⁴ 6s²

Re

Rhénium

186.207

[Xe] 4f¹⁴ 5d⁵ 6s²

Os

Osmium

190.23

[Xe] 4f¹⁴ 5d⁶ 6s²

Ir

Iridium

192.217

[Xe] 4f¹⁴ 5d⁷ 6s²

Pt

Platine

195.084

[Xe] 4f¹⁴ 5d⁹ 6s¹

Au

196.966569

[Xe] 4f¹⁴ 5d¹⁰ 6s¹

Hg

Mercure

200.592

[Xe] 4f¹⁴ 5d¹⁰ 6s²

Tl

Thallium

204.3835

[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹

Pb

Plomb

207.2

[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p²

Bi

Bismuth

208.98040

[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³

Po

Polonium

[209]

[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴

At

Astate

[210]

[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵

Rn

Radon

[222]

[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶

Fr

Francium

[223]

[Rn] 7s¹

Ra

Radium

[226]

[Rn] 7s²

* *

Actinides

Rf

Rutherfordium

[Xe] 5f¹⁴ 6d² 7s²

[267]

Db

Dubnium

[268]

[Xe] 5f¹⁴ 6d³ 7s²

Sg

Seaborgium

[269]

[Xe] 5f¹⁴ 6d⁴ 7s²

Bh

Bohrium

[270]

[Xe] 5f¹⁴ 6d⁵ 7s²

Hs

Hassium

[277]

[Xe] 5f¹⁴ 6d⁶ 7s²

Mt

Meitnérium

[278]

[Xe] 5f¹⁴ 6d⁷ 7s²

Ds

Darmstadtium

[281]

[Xe] 5f¹⁴ 6d⁸ 7s²

Rg

Roentgenium

[282]

[Xe] 5f¹⁴ 6d⁹ 7s²

Cn

Copernicium

[285]

[Rn] 5f¹⁴ 6d¹⁰ 7s²

Nh

Nihonium

[286]

[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹

Fl

Flérovium

[289]

[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p²

Mc

Moscovium

[289]

[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³

Lv

Livermorium

[293]

[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁴

Ts

Tenesse

[294]

[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵

Og

Oganesson

[294]

[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶

La

Lanthane

138.90547

[Xe] 5d¹ 6s²

Ce

Cérium

140.116

[Xe] 4f¹ 5d¹ 6s²

Pr

Praséodyme

140.90766

[Xe] 4f³ 6s²

Nd

Néodyme

144.242

[Xe] 4f⁴ 6s²

Pm

Prométhium

[145]

[Xe] 4f⁵ 6s²

Sm

Samarium

150.36

[Xe] 4f⁶ 6s²

Eu

Europium

151.964

[Xe] 4f⁷ 6s²

Gd

Gadolinium

157.25

[Xe] 4f⁷ 5d¹ 6s²

Tb

Terbium

158.92535

[Xe] 4f⁹ 6s²

Dy

Dysprosium

162.500

[Xe] 4f¹⁰ 6s²

Ho

Holmium

164.93033

[Xe] 4f¹¹ 6s²

Er

Erbium

167.259

[Xe] 4f¹² 6s²

Tm

Thulium

168.93422

[Xe] 4f¹³ 6s²

Yb

Ytterbium

173.045

[Xe] 4f¹⁴ 6s²

Lu

Lutécium

174.9668

[Xe] 4f¹⁴ 5d¹ 6s²

Ac

Actinium

[227]

[Rn] 6d¹ 7s²

Th

Thorium

232.03806

[Rn] 6d² 7s²

Pa

Protactinium

231.03588

[Rn] 5f² 6d¹ 7s²

U

Uranium

238.02891

[Rn] 5f³ 6d¹ 7s²

Np

Neptunium

[237]

[Rn] 5f⁴ 6d¹ 7s²

Pu

Plutonium

[244]

[Rn] 5f⁶ 7s²

Am

Américium

[243]

[Rn] 5f⁷ 7s²

Cm

Curium

[247]

[Rn] 5f⁶ 6d¹ 7s²

Bk

Berkélium

[247]

[Rn] 5f⁹ 7s²

Cf

Californium

[251]

[Rn] 5f¹⁰ 7s²

Es

Einsteinium

[252]

[Rn] 5f¹¹ 7s²

Fm

Fermium

[257]

[Rn] 5f¹² 7s²

Md

Mendélévium

[258]

[Rn] 5f¹³ 7s²

No

Nobélium

[259]

[Rn] 5f¹⁴ 7s²

Lr

Lawrencium

[266]

[Rn] 5f¹⁴ 7s² 7p¹

Légende

Éléments

Symbole

Nom

Masse atomique

Couches életroniques

Types

Métaux							Non-métaux
Métaux alcalins	Métaux alcalino-terreux	Lanthanides	Actinides	Métaux de transition	Métaux pauvres	Métalloïdes	Autres non-métaux	Halogènes	Gaz nobles	Non classés

Nature

Origine
primordial	désintégration d’autres éléments	synthétique

Forme physique
Solide	Liquide	Gaz

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