Energie d'ionisation
(kJ mol-1)

 
1ère
2ème
3ème
H
1312.06
   
He
2372.34
5250.56
 
Li
520.23
7298.22
11815.13
Be
899.51
1757.12
14848.87
B
800.64
2427.09
3659.78
C
1086.46
2352.65
4620.50
N
1402.34
2856.11
4578.19
O
1313.95
3388.33
5300.51
F
1681.06
3374.20
6050.48
Ne
2080.68
3952.38
6122.04
Na
495.85
4562.48
6910.33
Mg
737.76
1450.69
7732.75
Al
577.54
1816.69
2744.80
Si
786.52
1577.15
3231.61
P
1011.82
1907.47
2914.14
S
999.60
2251.78
3356.75
Cl
1251.20
2297.72
3821.81
Ar
1520.58
2665.88
3930.84
K
418.81
3051.85
4419.64
Ca
589.83
1145.46
4912.40
Sc
633.09
1234.99
2388.67
Ti
658.82
1309.85
2652.56
V
650.92
1414.49
2828.10
Cr
652.87
1590.64
2987.21
Mn
717.28
1509.04
3248.49
Fe
762.47
1561.90
2957.49
Co
760.41
1648.27
3232.28
Ni
737.13
1753.04
3395.34
Cu
745.49
1957.93
3554.64
Zn
906.41
1733.31
3832.71
Ga
578.85
1979.33
2963.09
Ge
762.18
1537.47
3302.15
As
944.46
1797.82
2735.48
Se
940.97
2044.54
2973.74
Br
1139.87
2103.40
3473.50
Kr
1350.77
2350.39
3565.16
Rb
403.03
2632.62
3859.44
Sr
549.48
1064.25
4138.29
Y
599.86
1180.99
1979.89
Zr
640.08
1266.86
2218.21
Nb
652.13
1381.68
2416.01
Mo
684.32
1559.21
2617.67
Tc
702.42
1472.38
2850.20
Ru
710.19
1617.11
2746.96
Rh
719.68
1744.47
2996.86
Pd
804.39
1874.72
3177.28
Ag
731.01
2073.48
3360.61
Cd
867.78
1631.42
3616.30
In
558.30
1820.67
2704.50
Sn
708.58
1411.81
2943.07
Sb
830.59
1594.96
2441.10
Te
869.30
1794.64
2697.75
I
1008.40
1845.90
3184.04
Xe
1170.36
2046.45
3099.42
Cs
375.71
2234.37
3400.00
Ba
502.86
965.24
3600.00
La
538.10
1067.14
1850.34
Ce
534.41
1046.87
1948.82
Pr
527.20
1017.93
2086.41
Nd
533.09
1035.30
2132.34
Pm
538.39
1051.70
2151.64
Sm
544.53
1068.10
2257.77
Eu
547.11
1084.60
2404.43
Gd
593.40
1166.52
1990.51
Tb
565.77
1111.52
2114.01
Dy
573.02
1125.99
2199.88
Ho
580.99
1138.54
2203.74
Er
589.31
1151.08
2194.09
Tm
596.70
1162.66
2284.79
Yb
603.44
1174.82
2416.97
Lu
523.52
1341.16
2022.29
Hf
658.52
1437.64
2248.12
Ta
761.00
1500.00
2100 .00
W
758.77
1700 .00
2300.00
Re
755.82
1260.00
2510.00
Os
814.17
1600.00
2400.00
Ir
865.19
1680.00
2600.00
Pt
864.39
1791.07
2800.00
Au
890.13
1977.96
2900.00
Hg
1007.07
1809.69
3299.82
Tl
589.36
1971.02
2878.18
Pb
715.60
1450.40
3081.50
Bi
702.96
1610.35
2466.18
Po
812.09
1800.00
2700.00
At
930.00
1600.00
2900.00
Rn
1037.08
   
Fr
392.96
2100.00
3100.00
Ra
509.29
979.06
3300.00
Ac
498.83
1167.48
1900.00
Th
608.51
1109.59
1929.72
Pa
568.30
   
U
597.64
1420.00
 
Np
604.55
   
Pu
581.44
   
Am
578.2
   
Cm
580.85
   
Bk
601.11
   
Cs
375.71
2234.30
3400.00
Es
619.44
   
Fm
627.16
   
Md
634.88
   
No
641.63
    

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