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 3p6 3d10 4s1
or
[Ar]3d10 4s1
Electronic Configuration of Chromium
Atomic Number of Chromium is 24 and its electronic configuration is,
1s2 2s2 2p6 3s2 3p6 3d5 4s1
or
[Ar]3d5 4s1
Electronic Configuration of Oxygen
Atomic Number of Oxygen is 8 and its electronic configuration is,
1s2 2s2 2p4
or
[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 1s2 2s2 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.