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I II 1 2 3 4 5 6 7 H Li Na K Rb Cs Be Mg Ca Sr Ba La Ce Th Pr Nd U ...

I II 1 2 3 4 5 6 7 H Li Na K Rb Cs Be Mg Ca Sr Ba La Ce Th Pr Nd U ...

I II 1 2 3 4 5 6 7 H Li Na K Rb Cs Be Mg Ca Sr Ba La Ce Th Pr Nd U ...

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158,9<br />

Tb<br />

65<br />

terbium<br />

(247)<br />

Bk<br />

97<br />

berkélium<br />

162,5<br />

Dy<br />

66<br />

dysprosium<br />

(251)<br />

Cf<br />

98<br />

californium<br />

164,9<br />

Ho<br />

67<br />

holmium<br />

(252)<br />

Es<br />

99<br />

einsteinium<br />

Classification périodique des éléments<br />

masse atomique<br />

numéro atomique<br />

167,3<br />

Er<br />

68<br />

erbium<br />

(257)<br />

Fm<br />

100<br />

fermium<br />

168,9<br />

Tm<br />

69<br />

thulium<br />

(260)<br />

Md<br />

101<br />

mendélévium<br />

173<br />

Yb<br />

70<br />

ytterbium<br />

(259)<br />

No<br />

102<br />

nobélium<br />

12<br />

C<br />

6<br />

carbone<br />

nom<br />

45<br />

Sc<br />

21<br />

scandium<br />

88,9<br />

Y<br />

39<br />

ytrium<br />

175<br />

Lu<br />

71<br />

lutécium<br />

(262)<br />

Lr<br />

103<br />

lawrencium<br />

élément chimique<br />

Les masses atomiques entre parenthèses<br />

indiquent l’isotope le plus stable.<br />

Élément radioactif<br />

47,9<br />

Ti<br />

22<br />

titane<br />

91,2<br />

Zr<br />

40<br />

zirconium<br />

178,5<br />

Hf<br />

72<br />

hafnium<br />

(263)<br />

Rf<br />

104<br />

rutherfordium<br />

Élément radioactif naturel<br />

descendant de l’uranium et<br />

du thorium<br />

50,9<br />

V<br />

23<br />

vanadium<br />

92,9<br />

Nb<br />

41<br />

niobium<br />

180,9<br />

Ta<br />

73<br />

tantale<br />

(262)<br />

Db<br />

105<br />

dubnium<br />

52<br />

Cr<br />

24<br />

chrome<br />

95,9<br />

Mo<br />

42<br />

molybdène<br />

183,9<br />

W<br />

74<br />

tungstène<br />

(266)<br />

Sg<br />

106<br />

seaborgium<br />

54,9<br />

Mn<br />

25<br />

manganèse<br />

(98)<br />

Tc<br />

43<br />

technétium<br />

186,2<br />

Re<br />

75<br />

rhénium<br />

(264)<br />

Bh<br />

107<br />

bohrium<br />

55,8<br />

Fe<br />

26<br />

fer<br />

101,1<br />

Ru<br />

44<br />

ruthénium<br />

190,2<br />

Os<br />

76<br />

osmium<br />

Hs<br />

(269)<br />

108<br />

hassium

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