Electron Configurations of the Elements
1 Hydrogen 1s1
2 Helium 1s2
3 Lithium [He]2s1
4 Beryllium [He]2s2
5 Boron [He]2s2
2p1
6 Carbon [He]2s2
2p2
7 Nitrogen [He]2s2
2p3
8 Oxygen [He]2s2
2p4
9 Fluorine [He]2s2
2p5
10 Neon [He]2s2
2p6
11 Sodium [Ne]3s1
12 Magnesium [Ne]3s2
13 Aluminum [Ne]3s2
3p1
14 Silicon [Ne]3s2
3p2
15 Phosphorus [Ne]3s2
3p3
16 Sulfur [Ne]3s2
3p4
17 Chlorine [Ne]3s2
3p5
18 Argon [Ne]3s2
3p6
19 Potassium [Ar]4s1
20 Calcium [Ar]4s2
21 Scandium [Ar]3d1
4s2
22 Titanium [Ar]3d2
4s2
23 Vanadium [Ar]3d3
4s2
24 Chromium [Ar]3d5
4s1
25 Manganese [Ar]3d5
4s2
26 Iron [Ar]3d6
4s2
27 Cobalt [Ar]3d7
4s2
28 Nickel [Ar]3d8
4s2
29 Copper [Ar]3d104s1
30 Zinc [Ar]3d104s2
31 Gallium [Ar]3d104s2
4p1
32 Germanium [Ar]3d104s2
4p2
33 Arsenic [Ar]3d104s2
4p3
34 Selenium [Ar]3d104s2
4p4
35 Bromine [Ar]3d104s2
4p5
36 Krypton [Ar]3d104s2
4p6
37 Rubidium [Kr]5s1
38 Strontium [Kr]5s2
39 Yttrium [Kr]4d1
5s2
40 Zirconium [Kr]4d2
5s2
41 Niobium [Kr]4d4
5s1
42 Molybdenum [Kr]4d5
5s1
43 Technetium [Kr]4d5
5s2
44 Ruthenium [Kr]4d7
5s1
45 Rhodium [Kr]4d8
5s1
46 Palladium [Kr]4d10
47 Silver [Kr]4d105s1
48 Cadmium [Kr]4d105s2
49 Indium [Kr]4d105s2
5p1
50 Tin [Kr]4d105s2
5p2
51 Antimony [Kr]4d105s2
5p3
52 Tellurium [Kr]4d105s2
5p4
53 Iodine [Kr]4d105s2
5p5
54 Xenon [Kr]4d105s2
5p6
55 Cesium [Xe]6s1
56 Barium [Xe]6s2
57 Lanthanum [Xe]5d1
6s2
58 Cerium [Xe]4f1
5d1
6s2
59 Praseodymium [Xe]4f3
6s2
60 Neodymium [Xe]4f4
6s2
61 Promethium [Xe]4f5
6s2
62 Samarium [Xe]4f6
6s2
63 Europium [Xe]4f7
6s2
64 Gadolinium [Xe]4f7
5d1
6s2
65 Terbium [Xe]4f9
6s2
66 Dysprosium [Xe]4f106s2
67 Holmium [Xe]4f116s2
68 Erbium [Xe]4f126s2
69 Thulium [Xe]4f136s2
70 Ytterbium [Xe]4f146s2
71 Lutetium [Xe]4f145d1
6s2
72 Hafnium [Xe]4f145d2
6s2
73 Tantalum [Xe]4f145d3
6s2
74 Tungsten [Xe]4f145d4
6s2
75 Rhenium [Xe]4f145d5
6s2
76 Osmium [Xe]4f145d6
6s2
77 Iridium [Xe]4f145d7
6s2
78 Platinum [Xe]4f145d9
6s1
79 Gold [Xe]4f145d106s1
80 Mercury [Xe]4f145d106s2
81 Thallium [Xe]4f145d106s2
6p1
82 Lead [Xe]4f145d106s2
6p2
83 Bismuth [Xe]4f145d106s2
6p3
84 Polonium [Xe]4f145d106s2
6p4
85 Astatine [Xe]4f145d106s2
6p5
86 Radon [Xe]4f145d106s2
6p6
87 Francium [Rn]7s1
88 Radium [Rn]7s2
89 Actinium [Rn]6d1
7s2
90 Thorium [Rn]6d2
7s2
91 Protactinium [Rn]5f2
6d1
7s2
92 Uranium [Rn]5f3
6d1
7s2
93 Neptunium [Rn]5f4
6d1
7s2
94 Plutonium [Rn]5f6
7s2
95 Americium [Rn]5f7
7s2
96 Curium [Rn]5f7
6d1
7s2
97 Berkelium [Rn]5f9
7s2
98 Californium [Rn]5f107s2
99 Einsteinium [Rn]5f117s2
100 Fermium [Rn]5f127s2
101 Mendelevium [Rn]5f137s2
102 Nobelium [Rn]5f147s2
103 Lawrencium [Rn]5f147s2
7p1
104 Rutherfordium [Rn]5f146d2
7s2
105 Dubnium [Rn]5f146d3
7s2
106 Seaborgium [Rn]5f146d4
7s2
107 Bohrium [Rn]5f146d5
7s2
108 Hassium [Rn]5f146d6
7s2
109 Meitnerium [Rn]5f146d7
7s2
110 Darmstadtium [Rn]5f146d9
7s1
111 Roentgenium [Rn]5f146d107s1
112 Copernium [Rn]5f146d107s2
113 Nihonium [Rn]5f146d107s2
7p1
114 Flerovium [Rn]5f146d107s2
7p2
115 Moscovium [Rn]5f146d107s2
7p3
116 Livermorium [Rn]5f146d107s2
7p4
117 Tennessine [Rn]5f146d107s2
7p5
118 Oganesson [Rn]5f146d107s2
7p
