Name the elements which have the following electronic configuration $2, 8, 8$ .

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Solution

Given:
The electronic configuration of the atom is $2, 8, 8$
Formula used:
Atomic number $=$ Number of electrons present in the neutral atom.
The total number of electrons:
As the electronic configuration of the atom is $2, 8, 8$
Therefore the total number of electrons present are $18$
Determine the atomic number:
The Atomic number $=$ Number of electrons present in the neutral atom
Hence, the atomic number of the element would be $18$ .
Identification of the element:
Thus, the element is Argon, the chemical symbol of argon is $Ar$ .

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Name the elements which have the follow­ing electronic configuration 2,8,8.

Name the elements which have the following electronic configuration $2, 8, 8$ .