Z Name E Configuration
1 Hydrogen H 1s¹
2 Helium He 1s²
3 Lithium Li [He] 2s¹
4 Beryllium Be [He] 2s²
5 Boron B [He] 2s² 2p¹
6 Carbon C [He] 2s² 2p²
7 Nitrogen N [He] 2s² 2p³
8 Oxygen O [He] 2s² 2p⁴
9 Fluorine F [He] 2s² 2p⁵
10 Neon Ne [He] 2s² 2p⁶
11 Sodium Na [Ne] 3s¹
12 Magnesium Mg [Ne] 3s²
13 Aluminum Al [Ne] 3s² 3p¹
14 Silicon Si [Ne] 3s² 3p²
15 Phosphorus P [Ne] 3s² 3p³
16 Sulfur S [Ne] 3s² 3p⁴
17 Chlorine Cl [Ne] 3s² 3p⁵
18 Argon Ar [Ne] 3s² 3p⁶
19 Potassium K [Ar] 4s¹
20 Calcium Ca [Ar] 4s²
21 Scandium Sc [Ar] 4s² 3d¹
22 Titanium Ti [Ar] 4s² 3d²
23 Vanadium V [Ar] 4s² 3d³
24 Chromium Cr [Ar] 4s¹ 3d⁵
25 Manganese Mn [Ar] 4s² 3d⁵
26 Iron Fe [Ar] 4s² 3d⁶
27 Cobalt Co [Ar] 4s² 3d⁷
28 Nickel Ni [Ar] 4s² 3d⁸
29 Copper Cu [Ar] 4s¹ 3d¹⁰
30 Zinc Zn [Ar] 4s² 3d¹⁰
31 Gallium Ga [Ar] 4s² 3d¹⁰ 4p¹
32 Germanium Ge [Ar] 4s² 3d¹⁰ 4p²
33 Arsenic As [Ar] 4s² 3d¹⁰ 4p³
34 Selenium Se [Ar] 4s² 3d¹⁰ 4p⁴
35 Bromine Br [Ar] 4s² 3d¹⁰ 4p⁵
36 Krypton Kr [Ar] 4s² 3d¹⁰ 4p⁶
37 Rubidium Rb [Kr] 5s¹
38 Strontium Sr [Kr] 5s²
39 Yttrium Y [Kr] 5s² 4d¹
40 Zirconium Zr [Kr] 5s² 4d²
41 Niobium Nb [Kr] 5s¹ 4d⁴
42 Molybdenum Mo [Kr] 5s¹ 4d⁵
43 Technetium Tc [Kr] 5s² 4d⁵
44 Ruthenium Ru [Kr] 5s¹ 4d⁷
45 Rhodium Rh [Kr] 5s¹ 4d⁸
46 Palladium Pd [Kr] 5s⁰ 4d¹⁰
47 Silver Ag [Kr] 5s¹ 4d¹⁰
48 Cadmium Cd [Kr] 5s² 4d¹⁰
49 Indium In [Kr] 5s² 4d¹⁰ 5p¹
50 Tin Sn [Kr] 5s² 4d¹⁰ 5p²
51 Antimony Sb [Kr] 5s² 4d¹⁰ 5p³
52 Tellurium Te [Kr] 5s² 4d¹⁰ 5p⁴
53 Iodine I [Kr] 5s² 4d¹⁰ 5p⁵
54 Xenon Xe [Kr] 5s² 4d¹⁰ 5p⁶
55 Cesium Cs [Xe] 6s¹
56 Barium Ba [Xe] 6s²
57 Lanthanum La [Xe] 6s² 5d¹
58 Cerium Ce [Xe] 6s² 4f¹ 5d¹
59 Praseodymium Pr [Xe] 6s² 4f³
60 Neodymium Nd [Xe] 6s² 4f⁴
61 Promethium Pm [Xe] 6s² 4f⁵
62 Samarium Sm [Xe] 6s² 4f⁶
63 Europium Eu [Xe] 6s² 4f⁷
64 Gadolinium Gd [Xe] 6s² 4f⁷ 5d¹
65 Terbium Tb [Xe] 6s² 4f⁹
66 Dysprosium Dy [Xe] 6s² 4f¹⁰
67 Holmium Ho [Xe] 6s² 4f¹¹
68 Erbium Er [Xe] 6s² 4f¹²
69 Thulium Tm [Xe] 6s² 4f¹³
70 Ytterbium Yb [Xe] 6s² 4f¹⁴
71 Lutetium Lu [Xe] 6s² 4f¹⁴ 5d¹
72 Hafnium Hf [Xe] 6s² 4f¹⁴ 5d²
73 Tantalum Ta [Xe] 6s² 4f¹⁴ 5d³
74 Tungsten W [Xe] 6s² 4f¹⁴ 5d⁴
75 Rhenium Re [Xe] 6s² 4f¹⁴ 5d⁵
76 Osmium Os [Xe] 6s² 4f¹⁴ 5d⁶
77 Iridium Ir [Xe] 6s² 4f¹⁴ 5d⁷
78 Platinum Pt [Xe] 6s¹ 4f¹⁴ 5d⁹
79 Gold Au [Xe] 6s¹ 4f¹⁴ 5d¹⁰
80 Mercury Hg [Xe] 6s² 4f¹⁴ 5d¹⁰
81 Thallium Tl [Xe] 6s² 4f¹⁴ 5d¹⁰ 6p¹
82 Lead Pb [Xe] 6s² 4f¹⁴ 5d¹⁰ 6p²
83 Bismuth Bi [Xe] 6s² 4f¹⁴ 5d¹⁰ 6p³
84 Polonium Po [Xe] 6s² 4f¹⁴ 5d¹⁰ 6p⁴
85 Astatine At [Xe] 6s² 4f¹⁴ 5d¹⁰ 6p⁵
86 Radon Rn [Xe] 6s² 4f¹⁴ 5d¹⁰ 6p⁶
87 Francium Fr [Rn] 7s¹
88 Radium Ra [Rn] 7s²
89 Actinium Ac [Rn] 7s² 6d¹
90 Thorium Th [Rn] 7s² 6d²
91 Protactinium Pa [Rn] 7s² 5f² 6d¹
92 Uranium U [Rn] 7s² 5f³ 6d¹
93 Neptunium Np [Rn] 7s² 5f⁴ 6d¹
94 Plutonium Pu [Rn] 7s² 5f⁶
95 Americium Am [Rn] 7s² 5f⁷
96 Curium Cm [Rn] 7s² 5f⁷ 6d¹
97 Berkelium Bk [Rn] 7s² 5f⁹
98 Californium Cf [Rn] 7s² 5f¹⁰
99 Einsteinium Es [Rn] 7s² 5f¹¹
100 Fermium Fm [Rn] 7s² 5f¹²
101 Mendelevium Md [Rn] 7s² 5f¹³
102 Nobelium No [Rn] 7s² 5f¹⁴
103 Lawrencium Lr [Rn] 7s² 5f¹⁴ 6d¹
104 Rutherfordium Rf [Rn] 7s² 5f¹⁴ 6d²
105 Dubnium Db [Rn] 7s² 5f¹⁴ 6d³
106 Seaborgium Sg [Rn] 7s² 5f¹⁴ 6d⁴
107 Bohrium Bh [Rn] 7s² 5f¹⁴ 6d⁵
108 Hassium Hs [Rn] 7s² 5f¹⁴ 6d⁶
109 Meitnerium Mt [Rn] 7s² 5f¹⁴ 6d⁷
110 Darmstadtium Ds [Rn] 7s² 5f¹⁴ 6d⁸
111 Roentgenium Rg [Rn] 7s² 5f¹⁴ 6d⁹
112 Copernicium Cn [Rn] 7s² 5f¹⁴ 6d¹⁰
113 Nihonium Nh [Rn] 7s² 5f¹⁴ 6d¹⁰ 7p¹
114 Flerovium Fl [Rn] 7s² 5f¹⁴ 6d¹⁰ 7p²
115 Moscovium Mc [Rn] 7s² 5f¹⁴ 6d¹⁰ 7p³
116 Livermorium Lv [Rn] 7s² 5f¹⁴ 6d¹⁰ 7p⁴
117 Tennessine Ts [Rn] 7s² 5f¹⁴ 6d¹⁰ 7p⁵
118 Oganesson Og [Rn] 7s² 5f¹⁴ 6d¹⁰ 7p⁶