Configurations électroniques
des éléments
Les symboles tels que [He], [Kr], etc. représentent l’ensemble des électrons de cœur.
* ; exceptions à la règle de Klechkowski.
Remplissage électronique des couches de valence des éléments
1
H
I s ’
37
Rb
[Kr]
5 s’
2
He
l s 2
38
Sr
[Kr]
5s2
39
Y
[Kr]
4d’
5s2
3
U
[He]
2 s’
40
Zr
[Kr]
4cP
5s^
4
Be
[He]
2 s2
41
N b*
[Kr]
4(P
5 s’
5
B
[He]
2 s^
2 p’
42
Mo*
[Kr]
4d^
5 s’
6
C
[He]
2 s2
43
Te
[Kr]
4d^
5s2
7
N
[He]
2 s^
2p^
44
Ru*
[Kr]
4cT
5 s’
8
0
[He]
2 s2
2 ff
45
Rh*
[Kr]
4d^
5 s’
9
F
[He]
2 5^
2p^
46
Pd*
[Kr]
4d’°
1 0
Ne
[He]
2 s2
2 p®
47
Ag*
[Kr]
4i/’o 5 s’
48
Cd
[Kr]
4i/’° 5s^
1 1
Na
[Ne]
3 s’
49
In
[Kr]
4d’° 5s^
5p’
1 2
Mg
[Ne]
3s^
50
Sn
[Kr]
4d’^ 5s^
Spt
13
Al
[Ne]
3s^
3p’
51
Sb
[Kr]
4i/’o 5s^
5p^
14
Si
[Ne]
3s2
3p^
52
Te
[Kr]
4<3/’° 5s2
S tf
15
P
[Ne]
3s^
3p^
53
1
[Kr]
4i/’o 5s2
5p5
16
S
[Ne]
3s^
3p^
54
Xe
[Kr]
4d’° 5s2
5/^
1 7
Cl
[Ne]
3s^
3p^
18
Ar
[Ne]
3s2
3 ff
55
Cs
[Xe]
6 s’
56
Ba
[Xe]
6 s2
19
K
[Ar]
4s’
57
La*
[Xe]
Sd’
6 s^
2 0
Ca
[Ar]
4s2
58
Ce*
[Xe]
4 f
Sd’
6 s^
2 1
Sc
[Ar]
3 d’
4s^
59
Pr
[Xe]
4 P
6 s2
2 2
Ti
[Ar]
3cf
4s^
60
Nd
[Xe]
4f4
6 s2
23
V
[Ar]
3cP
4s2
61
Pm
[Xe]
4 P
6 s2
24
Cr*
[Ar]
3cP
4 s’
62
Sm
[Xe]
4f6
6 s'
■
'«U
-O
25
Mn
[Ar]
3cP
4s^
63
Eu
[Xe]
4 P
6 s^
■
TJ
O
c
26
Fe
[Ar]
3cf>
4s^
64
Gd*
[Xe]
4 P
SeP
c
D
U
27
Co
[Ar]
3cP
4s^
65
Tb
[Xe]
4f9
6 s2
■
L J
«JD
O
28
Ni
[Ar]
3d^
4s^
6 6
Dy
[Xe]
4po
6 s^
t H
O
D
29
Cu’ ' ^ [Ar]
3i/’o 4s’
67
Ho
[Xe]
4 fu
6 s2
CM
O
C
c
30
Zn
[Ar]
3d’° 4s^
6 8
Er
[Xe]
4p2
6 s^
4-1
O
O
31
Ga
[Ar]
3d'^ 4s2
4p’
69
Tm
[Xe]
4fM
6 s2
E
X I
a i
-O
O
32
Ge
[Ar]
3i/’° 4s^
4p^
70
Yb
[Xe]
4p4
6 s^
■
'v _
> -
s*
H
33
As
[Ar]
3i/’o 4s2
4p^
71
Lu
[Xe]
4 fu
5d’
Q .
O
( J
D
t 2
34
Se
[Ar]
3cP°
4s^
4p^
72
Hf
[Xe]
4p4
5cF
" 6
O
35
Br
[Ar]
3i/'o 4s^
4p^
73
Ta
[Xe]
4^4
5cP
3
Û
36
Kr
[Ar]
3d’° 4s2
4ps
74
W
[Xe]
4^4
Set
©
453
des éléments
Les symboles tels que [He], [Kr], etc. représentent l’ensemble des électrons de cœur.
* ; exceptions à la règle de Klechkowski.
Remplissage électronique des couches de valence des éléments
1
H
I s ’
37
Rb
[Kr]
5 s’
2
He
l s 2
38
Sr
[Kr]
5s2
39
Y
[Kr]
4d’
5s2
3
U
[He]
2 s’
40
Zr
[Kr]
4cP
5s^
4
Be
[He]
2 s2
41
N b*
[Kr]
4(P
5 s’
5
B
[He]
2 s^
2 p’
42
Mo*
[Kr]
4d^
5 s’
6
C
[He]
2 s2
43
Te
[Kr]
4d^
5s2
7
N
[He]
2 s^
2p^
44
Ru*
[Kr]
4cT
5 s’
8
0
[He]
2 s2
2 ff
45
Rh*
[Kr]
4d^
5 s’
9
F
[He]
2 5^
2p^
46
Pd*
[Kr]
4d’°
1 0
Ne
[He]
2 s2
2 p®
47
Ag*
[Kr]
4i/’o 5 s’
48
Cd
[Kr]
4i/’° 5s^
1 1
Na
[Ne]
3 s’
49
In
[Kr]
4d’° 5s^
5p’
1 2
Mg
[Ne]
3s^
50
Sn
[Kr]
4d’^ 5s^
Spt
13
Al
[Ne]
3s^
3p’
51
Sb
[Kr]
4i/’o 5s^
5p^
14
Si
[Ne]
3s2
3p^
52
Te
[Kr]
4<3/’° 5s2
S tf
15
P
[Ne]
3s^
3p^
53
1
[Kr]
4i/’o 5s2
5p5
16
S
[Ne]
3s^
3p^
54
Xe
[Kr]
4d’° 5s2
5/^
1 7
Cl
[Ne]
3s^
3p^
18
Ar
[Ne]
3s2
3 ff
55
Cs
[Xe]
6 s’
56
Ba
[Xe]
6 s2
19
K
[Ar]
4s’
57
La*
[Xe]
Sd’
6 s^
2 0
Ca
[Ar]
4s2
58
Ce*
[Xe]
4 f
Sd’
6 s^
2 1
Sc
[Ar]
3 d’
4s^
59
Pr
[Xe]
4 P
6 s2
2 2
Ti
[Ar]
3cf
4s^
60
Nd
[Xe]
4f4
6 s2
23
V
[Ar]
3cP
4s2
61
Pm
[Xe]
4 P
6 s2
24
Cr*
[Ar]
3cP
4 s’
62
Sm
[Xe]
4f6
6 s'
■
'«U
-O
25
Mn
[Ar]
3cP
4s^
63
Eu
[Xe]
4 P
6 s^
■
TJ
O
c
26
Fe
[Ar]
3cf>
4s^
64
Gd*
[Xe]
4 P
SeP
c
D
U
27
Co
[Ar]
3cP
4s^
65
Tb
[Xe]
4f9
6 s2
■
L J
«JD
O
28
Ni
[Ar]
3d^
4s^
6 6
Dy
[Xe]
4po
6 s^
t H
O
D
29
Cu’ ' ^ [Ar]
3i/’o 4s’
67
Ho
[Xe]
4 fu
6 s2
CM
O
C
c
30
Zn
[Ar]
3d’° 4s^
6 8
Er
[Xe]
4p2
6 s^
4-1
O
O
31
Ga
[Ar]
3d'^ 4s2
4p’
69
Tm
[Xe]
4fM
6 s2
E
X I
a i
-O
O
32
Ge
[Ar]
3i/’° 4s^
4p^
70
Yb
[Xe]
4p4
6 s^
■
'v _
> -
s*
H
33
As
[Ar]
3i/’o 4s2
4p^
71
Lu
[Xe]
4 fu
5d’
Q .
O
( J
D
t 2
34
Se
[Ar]
3cP°
4s^
4p^
72
Hf
[Xe]
4p4
5cF
" 6
O
35
Br
[Ar]
3i/'o 4s^
4p^
73
Ta
[Xe]
4^4
5cP
3
Û
36
Kr
[Ar]
3d’° 4s2
4ps
74
W
[Xe]
4^4
Set
©
453