Why do metals easily conduct electricity?

Answer 1

Metals which have a larger atomic radius when compared to non metals have some free electrons which belong to the outermost orbit and which are very loosely held by the nucleus. Such electrons cease to remain a part of the nucleus and roam freely around the whole metal surface. Thus, when electricity is passed these 'free' electrons can easily carry it across the surface.Thus, as against electrolytes conducting electricity through ions metals do so by free elecrons

Answer 2

They have loosely bound electrons that can readily be shared.