TABLEAU PÉRIODIQUE DES ÉLÉMENTS
Numéro du groupe→ |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
Nombre maxi d'e– sur la dernière couche ↓ |
Numéro de la période ↓ |
I A |
II A |
III B |
IV B |
V B |
VI B |
VII B |
VIII B |
I B |
II B |
III A |
IV A |
V A |
VI A |
VII A |
VIII A |
1 |
1 |
Hydrogène |
|
|
H |
1 |
-1 |
|
+1 |
|
|
|
|
|
|
|
|
|
2,2 |
1,01 |
|
|
|
|
|
|
|
|
|
|
Les chiffres romains correspondent au nombre d'électrons externes
|
Nom de l'élément
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2 |
2 |
|
|
|
Téléchargez le fichier pdf pour l'impression
(90 × 30 cm)
126,3KB
|
|
|
|
|
Numéro atomique Z
|
|
Valences
|
|
Valence la plus fréquente en gras
|
|
|
Electronégativité |
|
92 |
Uranium |
☢ |
|
U |
2 |
+3 |
8 |
+4 |
18 |
+5 |
32 |
+6 |
21 |
|
9 |
|
2 |
1,4 |
238,03 |
|
Masse atomique A
|
Radioactif
|
|
Nombre d'électrons sur les différents niveaux
|
|
|
Au centre: Symbole de l'élément (en bleu si artificiel)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
9 |
Fluor |
|
|
F |
2 |
-1 |
7 |
|
|
|
|
|
|
|
|
|
|
3,9 |
19,00 |
|
|
|
8 |
3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
17 |
Chlore |
|
|
Cl |
2 |
-1 |
8 |
+1 |
7 |
+3 |
|
+5 |
|
+7 |
|
|
|
3,1 |
35,45 |
|
|
|
18 |
4 |
|
|
21 |
Scandium |
|
|
Sc |
2 |
+3 |
8 |
|
9 |
|
2 |
|
|
|
|
|
|
1,3 |
44,96 |
|
|
|
|
|
|
|
Eléments normaux |
Métaux alcalins |
Métaux alcalino-terreux |
Métaux pauvres |
Métalloïdes |
Non métaux |
Halogènes |
Gaz rares |
|
|
Eléments de transition |
Métaux de transition |
Lanthanides |
Actinides |
|
|
|
|
|
|
|
22 |
Titane |
|
|
Ti |
2 |
+2 |
8 |
+3 |
10 |
+4 |
2 |
|
|
|
|
|
|
1,5 |
47,87 |
|
|
23 |
Vanadium |
|
|
V |
2 |
+2 |
8 |
+3 |
11 |
+4 |
2 |
+5 |
|
|
|
|
|
1,6 |
50,94 |
|
|
24 |
Chrome |
|
|
Cr |
2 |
+2 |
8 |
+3 |
13 |
+6 |
1 |
|
|
|
|
|
|
1,6 |
52,00 |
|
|
25 |
Manganèse |
|
|
Mn |
2 |
+2 |
8 |
+3 |
13 |
+4 |
2 |
+6 |
|
+7 |
|
|
|
1,5 |
54,94 |
|
|
26 |
Fer |
|
|
Fe |
2 |
+2 |
8 |
+3 |
14 |
|
2 |
|
|
|
|
|
|
1,8 |
55,85 |
|
|
27 |
Cobalt |
|
|
Co |
2 |
+2 |
8 |
+3 |
15 |
|
2 |
|
|
|
|
|
|
1,8 |
58,93 |
|
|
28 |
Nickel |
|
|
Ni |
2 |
+2 |
8 |
+3 |
16 |
|
2 |
|
|
|
|
|
|
1,8 |
58,69 |
|
|
29 |
Cuivre |
|
|
Cu |
2 |
+1 |
8 |
+2 |
18 |
|
1 |
|
|
|
|
|
|
1,9 |
63,55 |
|
|
30 |
Zinc |
|
|
Zn |
2 |
+2 |
8 |
|
18 |
|
2 |
|
|
|
|
|
|
1,6 |
65,39 |
|
|
|
|
|
|
35 |
Brome |
|
|
Br |
2 |
-1 |
8 |
+1 |
18 |
+5 |
7 |
|
|
|
|
|
|
3,0 |
79,90 |
|
|
36 |
Krypton |
|
|
Kr |
2 |
|
8 |
|
18 |
|
8 |
|
|
|
|
|
|
|
83,80 |
|
|
32 |
5 |
|
|
39 |
Yttrium |
|
|
Y |
2 |
+2 |
8 |
+3 |
18 |
|
9 |
|
2 |
|
|
|
|
1,2 |
88,91 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
40 |
Zirconium |
|
|
Zr |
2 |
+4 |
8 |
|
18 |
|
10 |
|
2 |
|
|
|
|
1,4 |
91,22 |
|
|
41 |
Niobium |
|
|
Nb |
2 |
+3 |
8 |
+5 |
18 |
|
12 |
|
1 |
|
|
|
|
1,6 |
92,91 |
|
|
42 |
Molybdène |
|
|
Mo |
2 |
+2 |
8 |
+3 |
18 |
+4 |
13 |
+5 |
1 |
+6 |
|
|
|
1,8 |
95,94 |
|
|
43 |
Technécium |
☢ |
|
Tc |
2 |
+7 |
8 |
|
18 |
|
14 |
|
1 |
|
|
|
|
1,9 |
[98] |
|
|
44 |
Ruthénium |
|
|
Ru |
2 |
+2 |
8 |
+3 |
18 |
+4 |
15 |
+6 |
1 |
+8 |
|
|
|
2,2 |
101,07 |
|
|
45 |
Rhodium |
|
|
Rh |
2 |
+2 |
8 |
+3 |
18 |
+4 |
16 |
|
1 |
|
|
|
|
2,2 |
102,91 |
|
|
46 |
Palladium |
|
|
Pd |
2 |
+2 |
8 |
+4 |
18 |
|
18 |
|
0 |
|
|
|
|
2,2 |
106,42 |
|
|
47 |
Argent |
|
|
Ag |
2 |
+1 |
8 |
|
18 |
|
18 |
|
1 |
|
|
|
|
1,9 |
107,87 |
|
|
48 |
Cadmium |
|
|
Cd |
2 |
+2 |
8 |
|
18 |
|
18 |
|
2 |
|
|
|
|
1,7 |
112,41 |
|
|
|
|
|
|
53 |
Iode |
|
|
I |
2 |
-1 |
8 |
+1 |
18 |
+3 |
18 |
+5 |
7 |
+7 |
|
|
|
2,7 |
126,90 |
|
|
54 |
Xénon |
|
|
Xe |
2 |
|
8 |
|
18 |
|
18 |
|
8 |
|
|
|
|
|
131,29 |
|
|
32 |
6 |
|
|
57 |
Lanthane |
|
|
La |
2 |
+3 |
8 |
|
18 |
|
18 |
|
9 |
|
2 |
|
|
1,1 |
138,91 |
|
|
58 |
Cérium |
|
|
Ce |
2 |
+3 |
8 |
+4 |
18 |
|
20 |
|
8 |
|
2 |
|
|
1,1 |
140,12 |
|
|
59 |
Praséodyme |
|
|
Pr |
2 |
+3 |
8 |
+4 |
18 |
|
21 |
|
8 |
|
2 |
|
|
1,1 |
140,91 |
|
|
60 |
Néodyme |
|
|
Nd |
2 |
+3 |
8 |
|
18 |
|
22 |
|
8 |
|
2 |
|
|
1,1 |
144,24 |
|
|
61 |
Prométhium |
☢ |
|
Pm |
2 |
+3 |
8 |
|
18 |
|
23 |
|
8 |
|
2 |
|
|
1,1 |
[145] |
|
|
62 |
Samarium |
|
|
Sm |
2 |
+2 |
8 |
+3 |
18 |
|
24 |
|
8 |
|
2 |
|
|
1,1 |
150,36 |
|
|
63 |
Europium |
|
|
Eu |
2 |
+2 |
8 |
+3 |
18 |
|
25 |
|
8 |
|
2 |
|
|
1,1 |
151,96 |
|
|
64 |
Gadolinium |
|
|
Gd |
2 |
+3 |
8 |
|
18 |
|
25 |
|
9 |
|
2 |
|
|
1,1 |
157,25 |
|
|
65 |
Terbium |
|
|
Tb |
2 |
+3 |
8 |
+4 |
18 |
|
27 |
|
8 |
|
2 |
|
|
1,2 |
158,93 |
|
|
66 |
Dysprosium |
|
|
Dy |
2 |
+3 |
8 |
|
18 |
|
28 |
|
8 |
|
2 |
|
|
1,2 |
162,50 |
|
|
67 |
Holmium |
|
|
Ho |
2 |
+3 |
8 |
|
18 |
|
29 |
|
8 |
|
2 |
|
|
1,2 |
164,93 |
|
|
68 |
Erbium |
|
|
Er |
2 |
+3 |
8 |
|
18 |
|
30 |
|
8 |
|
2 |
|
|
1,2 |
167,26 |
|
|
69 |
Thulium |
|
|
Tm |
2 |
+2 |
8 |
+3 |
18 |
|
31 |
|
8 |
|
2 |
|
|
1,2 |
168,93 |
|
|
70 |
Ytterbium |
|
|
Yb |
2 |
+2 |
8 |
+3 |
18 |
|
32 |
|
8 |
|
2 |
|
|
1,2 |
173,04 |
|
|
71 |
Lutétium |
|
|
Lu |
2 |
+3 |
8 |
|
18 |
|
32 |
|
9 |
|
2 |
|
|
1,2 |
174,97 |
|
|
72 |
Hafnium |
|
|
Hf |
2 |
+4 |
8 |
|
18 |
|
32 |
|
10 |
|
2 |
|
|
1,3 |
178,49 |
|
|
73 |
Tantale |
|
|
Ta |
2 |
+5 |
8 |
|
18 |
|
32 |
|
11 |
|
2 |
|
|
1,5 |
180,95 |
|
|
74 |
Tungstène |
|
|
W |
2 |
+2 |
8 |
+3 |
18 |
+4 |
32 |
+5 |
12 |
+6 |
2 |
|
|
1,7 |
183,84 |
|
|
75 |
Rhénium |
|
|
Re |
2 |
+2 |
8 |
+3 |
18 |
+6 |
32 |
+4 |
13 |
+7 |
2 |
|
|
1,9 |
186,21 |
|
|
76 |
Osmium |
|
|
Os |
2 |
+2 |
8 |
+3 |
18 |
+4 |
32 |
+6 |
14 |
+8 |
2 |
|
|
2,2 |
190,23 |
|
|
77 |
Iridium |
|
|
Ir |
2 |
+2 |
8 |
+3 |
18 |
+4 |
32 |
+6 |
17 |
|
0 |
|
|
2,2 |
192,22 |
|
|
78 |
Platine |
|
|
Pt |
2 |
+2 |
8 |
+4 |
18 |
|
32 |
|
17 |
|
1 |
|
|
2,2 |
195,08 |
|
|
79 |
Or |
|
|
Au |
2 |
+1 |
8 |
+3 |
18 |
|
32 |
|
18 |
|
1 |
|
|
2,4 |
196,97 |
|
|
80 |
Mercure |
|
|
Hg |
2 |
+1 |
8 |
+2 |
18 |
|
32 |
|
18 |
|
2 |
|
|
1,9 |
200,59 |
|
|
|
|
|
|
85 |
Astate |
☢ |
|
At |
2 |
-1 |
8 |
+1 |
18 |
+3 |
32 |
+5 |
18 |
+7 |
7 |
|
|
2,8 |
[210] |
|
|
86 |
Radon |
☢ |
|
Rn |
2 |
|
8 |
|
18 |
|
32 |
|
18 |
|
8 |
|
|
|
[222] |
|
|
72 |
7 |
|
|
89 |
Actinium |
☢ |
|
Ac |
2 |
+3 |
8 |
|
18 |
|
32 |
|
18 |
|
9 |
|
2 |
1,1 |
[227] |
|
|
90 |
Thorium |
☢ |
|
Th |
2 |
+4 |
8 |
|
18 |
|
32 |
|
18 |
|
10 |
|
2 |
1,3 |
232,04 |
|
|
91 |
Protactinium |
☢ |
|
Pa |
2 |
+4 |
8 |
+5 |
18 |
|
32 |
|
20 |
|
9 |
|
2 |
1,4 |
231,04 |
|
|
92 |
Uranium |
☢ |
|
U |
2 |
+3 |
8 |
+4 |
18 |
+5 |
32 |
+6 |
21 |
|
9 |
|
2 |
1,4 |
238,03 |
|
|
93 |
Neptunium |
☢ |
|
Np |
2 |
+3 |
8 |
+4 |
18 |
+5 |
32 |
+6 |
23 |
|
8 |
|
2 |
1,4 |
[237] |
|
|
94 |
Plutonium |
☢ |
|
Pu |
2 |
+3 |
8 |
+4 |
18 |
+5 |
32 |
+6 |
24 |
|
8 |
|
2 |
1,3 |
[244] |
|
|
95 |
Américium |
☢ |
|
Am |
2 |
+3 |
8 |
+4 |
18 |
+5 |
32 |
+6 |
25 |
|
8 |
|
2 |
1,3 |
[243] |
|
|
96 |
Curium |
☢ |
|
Cm |
2 |
+3 |
8 |
|
18 |
|
32 |
|
25 |
|
9 |
|
2 |
1,3 |
[247] |
|
|
97 |
Berkélium |
☢ |
|
Bk |
2 |
+3 |
8 |
+4 |
18 |
|
32 |
|
27 |
|
8 |
|
2 |
1,3 |
[247] |
|
|
98 |
Californium |
☢ |
|
Cf |
2 |
+3 |
8 |
|
18 |
|
32 |
|
28 |
|
8 |
|
2 |
1,3 |
[251] |
|
|
99 |
Einsteinium |
☢ |
|
Es |
2 |
+3 |
8 |
|
18 |
|
32 |
|
29 |
|
8 |
|
2 |
1,3 |
[252] |
|
|
100 |
Fermium |
☢ |
|
Fm |
2 |
+3 |
8 |
|
18 |
|
32 |
|
30 |
|
8 |
|
2 |
1,3 |
[257] |
|
|
101 |
Mendélévium |
☢ |
|
Md |
2 |
+3 |
8 |
|
18 |
|
32 |
|
31 |
|
8 |
|
2 |
1,3 |
[258] |
|
|
102 |
Nobélium |
☢ |
|
No |
2 |
+3 |
8 |
|
18 |
|
32 |
|
32 |
|
8 |
|
2 |
1,3 |
[259] |
|
|
103 |
Lawrencium |
☢ |
|
Lr |
2 |
+3 |
8 |
|
18 |
|
32 |
|
32 |
|
9 |
|
2 |
1,3 |
[262] |
|
|
104 |
Rutherfordium |
☢ |
|
Rf |
2 |
+4 |
8 |
|
18 |
|
32 |
|
32 |
|
10 |
|
2 |
|
[261] |
|
|
105 |
Dubnium |
☢ |
|
Db |
2 |
+5 |
8 |
|
18 |
|
32 |
|
32 |
|
11 |
|
2 |
|
[262] |
|
|
106 |
Seaborgium |
☢ |
|
Sg |
2 |
+6 |
8 |
|
18 |
|
32 |
|
32 |
|
12 |
|
2 |
|
[266] |
|
|
107 |
Bohrium |
☢ |
|
Bh |
2 |
+7 |
8 |
|
18 |
|
32 |
|
32 |
|
13 |
|
2 |
|
[264] |
|
|
108 |
Hassium |
☢ |
|
Hs |
2 |
|
8 |
|
18 |
|
32 |
|
32 |
|
14 |
|
2 |
|
[277] |
|
|
109 |
Meitnerium |
☢ |
|
Mt |
2 |
|
8 |
|
18 |
|
32 |
|
32 |
|
15 |
|
2 |
|
[268] |
|
|
110 |
Darmstadtium |
☢ |
|
Ds |
2 |
|
8 |
|
18 |
|
32 |
|
32 |
|
17 |
|
1 |
|
[281] |
|
|
111 |
Roentgenium |
☢ |
|
Rg |
2 |
|
8 |
|
18 |
|
32 |
|
32 |
|
18 |
|
1 |
|
[280] |
|
|
112 |
Copernicium |
☢ |
|
Cn |
2 |
|
8 |
|
18 |
|
32 |
|
32 |
|
18 |
|
2 |
|
[277] |
|
|
|
|
|
|
117 |
Tennesse |
☢ |
|
Ts |
2 |
|
8 |
|
18 |
|
32 |
|
32 |
|
18 |
|
7 |
|
[291] |
|
|
118 |
Oganesson |
☢ |
|
Og |
2 |
|
8 |
|
18 |
|
32 |
|
32 |
|
18 |
|
8 |
|
[293] |
|
|
98 |
Familles → |
Métaux alcalins |
Métaux alcalino-terreux |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Titane |
Vanadium |
Chrome |
Manganèse |
Fer (26 à 28) et Platine (44 à 46 et 76 à 78) |
Cuivre |
Zinc |
Métaux terreux |
Carbonides ou Cristallogènes |
Azotides ou Pnictogènes |
Sulfurides ou Chalcogènes |
Halogènes |
Gaz rares ou nobles |
|
p=paire
c=célibat |
(1c) |
(2c) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(3c) |
(4c) |
(1p 3c) |
(2p 2c) |
(3p 1c) |
Th. Fumey 2008 / Rev. 2024 |