Question

An atom has electronic configuration 2.8.1 .To which elements would it be chemically similar?

Answer 1

The above atom is sodium . It shows similar chemical properties to group 1 of alkali metals and they are lithium,potassium,rubidium etc

Answer 2

hey frnd ur answer :

electronic configuration of element : 2.8.1

it is Sodium (Na)

it is member of 1st group of periodic table i.e. Alkali metals.

so its properties would be similar to that of the alkali metals; H, Li, K, R, Cs, Fr