Electronic Configuration of First 30 Elements of Periodic table

Electronic configuration of first 30 elements of periodic table is given below.

Atomic numberElementElectron configurationElectron shell arrangement
1Hydrogen (H)1s11
2Helium (He)1s22
3Lithium (Li)[He] 2s12, 1
4Beryllium (Be)[He] 2s22, 2
5Boron (B)[He] 2s2 2p12, 3
6Carbon (C)[He] 2s2 2p22, 4
7Nitrogen (N)[He] 2s2 2p32, 5
8Oxygen (O)[He] 2s2 2p42, 6
9Fluorine (F)[He] 2s2 2p52, 7
10Neon (Ne)[He] 2s2 2p62, 8
11Sodium (Na)[Ne] 3s12, 8, 1
12Magnesium (Mg)[Ne] 3s22, 8, 2
13Aluminum (Al)[Ne] 3s2 3p12, 8, 3
14Silicon (Si)[Ne] 3s2 3p22, 8, 4
15Phosphorus (P)[Ne] 3s2 3p32, 8, 5
16Sulfur (S)[Ne] 3s2 3p42, 8, 6
17Chlorine (Cl)[Ne] 3s2 3p52, 8, 7
18Argon (Ar)[Ne] 3s2 3p62, 8, 8
19Potassium (K)[Ar] 4s12, 8, 8, 1
20Calcium (Ca)[Ar] 4s22, 8, 8, 2
21Scandium (Sc)[Ar] 3d1 4s22, 8, 9, 2
22Titanium (Ti)[Ar] 3d2 4s22, 8, 10, 2
23Vanadium (V)[Ar] 3d3 4s22, 8, 11, 2
24Chromium (Cr)[Ar] 3d5 4s12, 8, 13, 1
25Manganese (Mn)[Ar] 3d5 4s22, 8, 13, 2
26Iron (Fe)[Ar] 3d6 4s22, 8, 14, 2
27Cobalt (Co)[Ar] 3d7 4s22, 8, 15, 2
28Nickel (Ni)[Ar] 3d8 4s22, 8, 16, 2
29Copper (Cu)[Ar] 3d10 4s12, 8, 18, 1
30Zinc (Zn)[Ar] 3d10 4s22, 8, 18, 2

Note 1: If you want the electron configuration of all the 118 elements, then visit this article: Electron configuration chart of ALL ELEMENTS (where I have provided the shorthand electron configuration as well as long hand electron configuration of each element).

Note 2: If you want a periodic table with electron configuration labeled on it, then visit this article: Periodic table with Electron Configuration (labeled on it) (From this article, you can also download the HD image of periodic table labeled with Electron configuration, so visit now).

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