See detailed explanation for electron configuration in atomic orbitals
Groups | ||||||||||||||||||
Periods | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
1 | 1 H 1s |
2 He 1s2 |
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2 | 3 Li 1s22s |
4 Be 1s22s2 |
5 B 1s22s22p |
6 C 1s22s22p2 |
7 N 1s22s22p3 |
8 O 1s22s22p4 |
9 F 1s22s22p5 |
10 Ne 1s22s22p6 |
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3 | 11 Na [Ne]3s |
12 Mg [Ne]3s2 |
13 Al [Ne]3s23p |
14 Si [Ne]3s23p2 |
15 P [Ne]3s23p3 |
16 S [Ne]3s23p4 |
17 Cl [Ne]3s23p5 |
18 Ar [Ne]3s23p6 |
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4 | 19 K [Ar]4s |
20 Ca [Ar]4s2 |
21 Sc [Ar]3d4s2 |
22 Ti [Ar]3d24s2 |
23 V [Ar]3d34s2 |
24 Cr [Ar]3d54s |
25 Mn [Ar]3d54s2 |
26 Fe [Ar]3d64s2 |
27 Co [Ar]3d74s2 |
28 Ni [Ar]3d84s2 |
29 Cu [Ar]3d104s |
30 Zn [Ar]3d104s2 |
31 Ga [Ar]3d104s24p |
32 Ge [Ar]3d104s24p2 |
33 As [Ar]3d104s24p3 |
34 Se [Ar]3d104s24p4 |
35 Br [Ar]3d104s24p5 |
36 Kr [Ar]3d104s24p6 |
5 | 37 Rb [Kr]5s |
38 Sr [Kr]5s2 |
39 Y [Kr]4d5s2 |
40 Zr [Kr]4d25s2 |
41 Nb [Kr]4d45s |
42 Mo [Kr]4d55s |
43 Tc [Kr]4d55s2 |
44 Ru [Kr]4d75s |
45 Rh [Kr]4d85s |
46 Pd [Kr]4d10 |
47 Ag [Kr]4d105s |
48 Cd [Kr]4d105s2 |
49 In [Cd]5p |
50 Sn [Cd]5p2 |
51 Sb [Cd]5p3 |
52 Te [Cd]5p4 |
53 I [Cd]5p5 |
54 Xe [Cd]5p6 |
6 | 55 Cs [Xe]6s |
56 Ba [Xe]6s2 |
72 Hf [Xe]4f145d26s2 |
73 Ta [Xe]4f145d36s2 |
74 W [Xe]4f145d46s2 |
75 Re [Xe]4f145d56s2 |
76 Os [Xe]4f145d66s2 |
77 Ir [Xe]4f145d76s2 |
78 Pt [Xe]4f145d96s |
79 Au [Xe]4f145d106s |
80 Hg [Xe]4f145d106s2 |
81 Tl [Hg]6p |
82 Pb [Hg]6p2 |
83 Bi [Hg]6p3 |
84 Po [Hg]6p4 |
85 At [Hg]6p5 |
86 Rn [Hg]6p6 |
|
7 | 87 Fr [Rn]7s |
88 Ra [Rn]7s2 |
104 Rf [Rn]5f146d27s2 |
105 Db [Rn]5f146d37s2 |
106 Sg [Rn]5f146d47s2 |
107 Bh [Rn]5f146d57s2 |
108 Hs [Rn]5f146d67s2 |
109 Mt
|
110 Ds
|
111 Rg
|
112 Cn
|
113 Nh
|
114 Fl
|
115 Mc
|
116 Lv
|
117 Ts
|
118 Og
|
|
57 La [Xe]5d6s2 |
58 Ce [Xe]4f5d6s2 |
59 Pr [Xe]4f36s2 |
60 Nd [Xe]4f46s2 |
61 Pm [Xe]4f56s2 |
62 Sm [Xe]4f66s2 |
63 Eu [Xe]4f76s2 |
64 Gd [Xe]4f75d6s2 |
65 Tb [Xe]4f96s2 |
66 Dy [Xe]4f106s2 |
67 Ho [Xe]4f116s2 |
68 Er [Xe]4f126s2 |
69 Tm [Xe]4f136s2 |
70 Yb [Xe]4f146s2 |
71 Lu [Xe]4f145d6s2 |
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89 Ac [Rn]6d7s2 |
90 Th [Rn]6d27s2 |
91 Pa [Rn]5f26d7s2 |
92 U [Rn]5f36d7s2 |
93 Np [Rn]5f46d7s2 |
94 Pu [Rn]5f67s2 |
95 Am [Rn]5f77s2 |
96 Cm [Rn]5f76d7s2 |
97 Bk [Rn]5f97s2 |
98 Cf [Rn]5f107s2 |
99 Es [Rn]5f117s2 |
100 Fm [Rn]5f127s2 |
101 Md [Rn]5f137s2 |
102 No [Rn]5f147s2 |
103 Lr [Rn]5f147s27p |
Designations used in the ground shell lists:
[Ne] = 1s22s22p6
[Ar] = 1s22s22p63s23p6
[Kr] = 1s22s22p63s23p63d104s24p6
[Cd] = 1s22s22p63s23p63d104s24p64d105s2
[Xe] = 1s22s22p63s23p63d104s24p64d105s25p6
[Hg] = 1s22s22p63s23p63d104s24p64d105s25p64f145d106s2
[Rn] = 1s22s22p63s23p63d104s24p64d105s25p64f145d106s26p6