Assertion: Helium and beryllium have similar outer electronic configuration of the type `ns^(2)`.
Reason: Both are chemically inert.

Assertion (A) : He and Be have similar outer shell electronic configuration of type ns^(2) . Reason (R ) : Both are chemically inert.

Outer electronic configuration of Eu^(2+)

The alkali metals have an outer electronic configuration of

Statement-1 :Helium and beryllium both are chemically inert. Statement-2 : Helium and beryllium have similar outer electronic configuration of the type ns^(2)

Statement-1 :Helium and beryllium both are chemically inert. Statement-2 : Helium and beryllium have similar outer electronic configuration of the type ns^(2)

Assertion : He and Be have similar valence shell electronic cofiguration ns^(2) Reason :Both are chemically inert.

Assertion : He and Be have similar valence shell electronic cofiguration ns^(2) Reason :Both are chemically inert.