Periodic Table (Electron Configurations) Information
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1s: |
1
H
1 |
2
He
2 |
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[He] + 2s: 2p: |
3
Li
1 - |
4
Be
2 - |
5
B
2 1 |
6
C
2 2 |
7
N
2 3 |
8
O
2 4 |
9
F
2 5 |
10
Ne
2 6 |
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[Ne] + 3s: 3p: |
11
Na
1 - |
12
Mg
2 - |
13
Al
2 1 |
14
Si
2 2 |
15
P
2 3 |
16
S
2 4 |
17
Cl
2 5 |
18
Ar
2 6 |
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[Ar] + 4s: 3d: 4p: |
19
K
1 - - |
20
Ca
2 - - |
21
Sc
2 1 - |
22
Ti
2 2 - |
23
V
2 3 - |
24
Cr
1 5 - |
25
Mn
2 5 - |
26
Fe
2 6 - |
27
Co
2 7 - |
28
Ni
1 9 - |
29
Cu
1 10 - |
30
Zn
2 10 - |
31
Ga
2 10 1 |
32
Ge
2 10 2 |
33
As
2 10 3 |
34
Se
2 10 4 |
35
Br
2 10 5 |
36
Kr
2 10 6 |
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[Kr] + 5s: 4d: 5p: |
37
Rb
1 - - |
38
Sr
2 - - |
39
Y
2 1 - |
40
Zr
2 2 - |
41
Nb
1 4 - |
42
Mo
1 5 - |
43
Tc
2 5 - |
44
Ru
1 7 - |
45
Rh
1 8 - |
46
Pd
- 10 - |
47
Ag
1 10 - |
48
Cd
2 10 - |
49
In
2 10 1 |
50
Sn
2 10 2 |
51
Sb
2 10 3 |
52
Te
2 10 4 |
53
I
2 10 5 |
54
Xe
2 10 6 |
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[Xe] + 6s: 4f: 5d: 6p: |
55
Cs
1 - - - |
56
Ba
2 - - - |
57
La
2 - 1 - |
58
Ce
2 1 1 - |
59
Pr
2 3 - - |
60
Nd
2 4 - - |
61
Pm
2 5 - - |
62
Sm
2 6 - - |
63
Eu
2 7 - - |
64
Gd
2 7 1 - |
65
Tb
2 9 - - |
66
Dy
2 10 - - |
67
Ho
2 11 - - |
68
Er
2 12 - - |
69
Tm
2 13 - - |
70
Yb
2 14 - - |
71
Lu
2 14 1 - |
72
Hf
2 14 2 - |
73
Ta
2 14 3 - |
74
W
2 14 4 - |
75
Re
2 14 5 - |
76
Os
2 14 6 - |
77
Ir
2 14 7 - |
78
Pt
1 14 9 - |
79
Au
1 14 10 - |
80
Hg
2 14 10 - |
81
Tl
2 14 10 1 |
82
Pb
2 14 10 2 |
83
Bi
2 14 10 3 |
84
Po
2 14 10 4 |
85
At
2 14 10 5 |
86
Rn
2 14 10 6 |
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[Rn] + 7s: 5f: 6d: 7p: |
87
Fr
1 - - - |
88
Ra
2 - - - |
89
Ac
2 - 1 - |
90
Th
2 - 2 - |
91
Pa
2 2 1 - |
92
U
2 3 1 - |
93
Np
2 4 1 - |
94
Pu
2 6 - - |
95
Am
2 7 - - |
96
Cm
2 7 1 - |
97
Bk
2 9 - - |
98
Cf
2 10 - - |
99
Es
2 11 - - |
100
Fm
2 12 - - |
101
Md
2 13 - - |
102
No
2 14 - - |
103
Lr
2 14 - 1 |
104
Rf
2 14 2 - |
105
Db
2 14 3 - |
106
Sg
2 14 4 - |
107
Bh
2 14 5 - |
108
Hs
2 14 6 - |
109
Mt
2 14 7 - |
110
Ds
1 14 9 - |
111
Rg
2 14 9 - |
112
Cn
2 14 10 - |
113
Uut
2 14 10 1 |
114
Uuq
2 14 10 2 |
115
Uup
2 14 10 3 |
116
Uuh
2 14 10 4 |
117
Uus
2 14 10 5 |
118
Uuo
2 14 10 6 |
- Configurations of elements 105 and above are uncertain or not available.
- Grayed out electron numbers indicate subshells that are filled to their maximum.
- Configurations that are unavailable are guessed to be similar to the element directly above on the Periodic Table.
- The bracketed noble gas symbols on the left represent the inner configurations that are the same in each period. Written out these are:
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- He, 2, helium : 1s2
- Ne, 10, neon : 1s2 2s2 2p6
- Ar, 18, argon : 1s2 2s2 2p6 3s2 3p6
- Kr, 36, krypton : 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
- Xe, 54, xenon : 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6
- Rn, 86, radon : 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6
- Uuo, 118, ununoctium : 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p6
- Note the non-linear shell ordering, which comes about due to the different energies of smaller and larger shells.
Element categories in the periodic table
| Metals | Metalloids | Nonmetals | Unknown chemical properties | |||||||
| Alkali metals | Alkaline earth metals | Inner transition metals | Transition metals | Post-transition metals | Other nonmetals | Halogens | Noble gases | |||
| Lanthanides | Actinides | |||||||||
References
electron configurations of the elements (data page)
Categories: Periodic table
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