Among the elements of the third period (Na to Ar), pick out the element
that is the most reactive non metal.

Among the elements of the third period (Na to Ar), pick out the element that is the most reactive metal.

Among the elements of the third period (Na to Ar), pick out the element that is the most reactive metal.

Among the elements of the third period Na to Ar pick out the element: that is most reactive non - metal

Among the elements of the third period Na to Ar pick out the element: that is most reactive metal.

Among the elements of the third period (Na to Ar), pick out the element with the largest atomic radius.

Among the elements of the third period (Na to Ar), pick out the element with the highest first ionization enthalpy.

Among the elements of the third period (Na to Ar), pick out the element with the largest atomic radius.

Among the elements of the third period (Na to Ar), pick out the element with the highest first ionization enthalpy.