Why group 17 elements are highly reactive ?

Why group 17 elements are called halogens?

What is nature of compounds formed when group 17 elements react with metals ?

On the basis of their electronic configuration, explain why alkali metals are highly reactive?

On the basis of their electronic configuration, explain why alkali metals are highly reactive?

Why halogens are very reactive?

Assertion (A): Alkali metals do not occur in native state. Reason (R ): Alkali metlas are highly reactive elements.

Why m.p. and b.p. of group 14 elements are higher in comparison to group 13?

Why m.p. and b.p. of group 14 elements are higher in comparison to group 13?

What are chalcogens ? Why are group 16 elements called chalcogens ?

The main group elements i.e. representative elements complete their electron configuration using s and p electrons in the periodic table. These elements range from the most metallic to the most non-metallic with intermediate properties, the semi-metals, in between .The elements which occur at the two extremes of the periodic table are highly reactive and therefore, these highly reactive elements do not occur in free state : they usually occur in the combined forms. Beryllium and aluminium exhibit many properties which are similar, but, the two elements differ in :