Electronic Configuration of Elements

Electronic configuration represents the way in which electrons are filled inside the orbital of any atom. Electronic configuration of various elements are,

Electronic Configuration of Copper

Atomic Number of Copper is 29 and its electronic configuration is,

1s² 2s² 2p⁶ 3s² 3p⁶3d¹⁰ 4s¹

[Ar]3d¹⁰ 4s¹

Electronic Configuration of Chromium

Atomic Number of Chromium is 24 and its electronic configuration is,

1s² 2s² 2p⁶ 3s² 3p⁶3d⁵ 4s¹

[Ar]3d⁵ 4s¹

Electronic Configuration of Oxygen

Atomic Number of Oxygen is 8 and its electronic configuration is,

1s² 2s² 2p⁴

[He]2p⁴

Electronic Configuration of Nobel Gases

Ideal gas are chemical elements that have completed valance shells and they generally do not participate in the bonding process. Ideal gas includes Helium, Neon, and others.

Following are the electronic configuration of some ideal gases,

Helium (He): Helium has 2 electrons and its electronic configuration is1s²

Neon (Ne): Neon has 10 electrons and its electronic configuration 1s²2s² 2p⁶

Argon (Ar): Argon has 18 electrons and its electronic configuration 1s² 2s² 2p⁶ 3s² 3p⁶

Krypton (Kr): Krypton has 36 electrons and its electronic configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶

Xenon (Xe): Xenon has 54 electrons and its electronic configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶

Radon (Rn): Radon has 86 electrons and its electronic configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁶

Electron Configuration

Electron Configuration of an element tells us how electrons are filled inside various orbitals of the atom. The distribution of electrons inside various orbital of atoms is very useful in explaining various properties of the atoms and their combination with other atoms. The electron configuration of the N (the most common element in the Earth’s atmosphere) is 1s² 2s² 2p⁴ as it has 7 electrons which are arranged in order as 2 is 1s orbital, 2 in 2s orbital, and 3 in 2p orbital.

Let’s have a look at how electrons are arranged around a nucleus for other atoms which rules are useful in achieving the right electron configuration and other in this article.