Information system «Electronic structure of atoms»
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Table
Element description
He
ions
I
II
He
–
3
He
4
He
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
10
11
12
13
14
15
16
17
18
Lanthanide
Actinide
Superactinide
29
T
D
122
Ubb
121
Ubu
120
Ubn
119
Uue
118
Og
117
Ts
116
Lv
115
Mc
114
Fl
113
Nh
112
Cn
111
Rg
110
Ds
109
Mt
108
Hs
107
Bh
106
Sg
105
Db
104
Rf
103
Lr
102
No
101
Md
100
Fm
99
Es
98
Cf
97
Bk
96
Cm
95
Am
94
Pu
93
Np
92
U
91
Pa
90
Th
89
Ac
88
Ra
87
Fr
86
Rn
85
At
84
Po
83
Bi
82
Pb
81
Tl
80
Hg
79
Au
78
Pt
77
Ir
76
Os
75
Re
74
W
73
Ta
72
Hf
71
Lu
70
Yb
69
Tm
68
Er
67
Ho
66
Dy
65
Tb
64
Gd
63
Eu
62
Sm
61
Pm
60
Nd
59
Pr
58
Ce
57
La
56
Ba
55
Cs
54
Xe
53
I
52
Te
51
Sb
50
Sn
49
In
48
Cd
47
Ag
46
Pd
45
Rh
44
Ru
43
Tc
42
Mo
41
Nb
40
Zr
39
Y
38
Sr
37
Rb
36
Kr
35
Br
34
Se
33
As
32
Ge
31
Ga
30
Zn
29
Cu
28
Ni
27
Co
26
Fe
25
Mn
24
Cr
23
V
22
Ti
21
Sc
20
Ca
19
K
18
Ar
17
Cl
16
S
15
P
14
Si
13
Al
12
Mg
11
Na
10
Ne
9
F
8
O
7
N
6
C
5
B
4
Be
3
Li
2
He
1
H
Negative ion of Helium, Z=2, I.P.=0 cm
-1
Electronic structure
Found 12 levels.
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