Answer:
The Argon ([tex]Ar[/tex]) has this electron configuration.
Explanation:
The question is wrong. The correct electron configuration is :
[tex]1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}[/tex]
The electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals.
The letters s,p,d and f are called the orbitals.
The numbers 1,2,3,4,5,6 and 7 are called the levels.
The maximum numbers of electrons that the s-orbital can hold is 2 electrons.
The maximum numbers of electrons that the p-orbital can hold is 6 electrons.
The maximum numbers of electrons that the d-orbital can hold is 10 electrons.
The maximum numbers of electrons that the f-orbital can hold is 14 electrons.
The order in which the orbitals are filled is :
1s-2s-2p-3s-3p-4s-3d-4p-5s-4d-5p-6s-4f-5d-6p-7s-5f-6d-7p-6f-7d-7f
To identify the electron configuration of an element we need to count and sum the exponents of its orbitals.
The electron configuration is :
[tex]1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}[/tex]
Has the following sum of exponents : [tex]2+2+6+2+6=18[/tex]
Therefore the total electrons of the element is 18 electrons.
The element that has 18 electrons is Argon ([tex]Ar[/tex])
