Electronic configuration of chalcogens in their outermost orbit is

The general electronic configuration of the outermost orbit in halogen is

"The properties of an element depend on the electronic configuration of the outermost orbit of its atom"-justify the statement with reasons.

Write down the electronic configuration of the outermost electronic orbit of the most electronegative element.

Which of the following electronic configurations in the outermost two subshells is characteristic of the alkali metals ?

Electron affinity order of chalcogens is

The inert gas element which does not have octet electronic configuration in its outermost orbit is

The inert gas element which has octet electronic configuration in its outermost orbit is