Question

which of the following elements would this element resemble? electron configuration 2,8,2
option
1)N(7)
2)Be(4)
3)Ar(18)
4)Cl(17)

Answer 1

The above electronic configuration is electronic configuration of the alkaline earth metal.
In the following options the alkaline earth metal is 2)Be(4) therefore it is the answer.
Pls mark my answer brainleast.

Answer 2

Answer : The correct option is 2.

Explanation :

The given electronic configuration is 2,8,2

• This electronic configuration is the electronic configuration of alkaline earth metals.

• The alkaline earth metals are six elements of periodic table which are beryllium, magnesium, calcium, strontium, barium, radium. These elements have similar properties.

Therefore, the beryllium is the element which resembles to the given electronic configuration.