Question

Place the following in order of increasing metallic character: Na, P, AI, Ar.

Short answer

The correct order is Ar, P, Al, Na

Step-by-step solution

Given Information

We have to place the elements Al, Na, P, Ar in correct order of property metallic character.

Explanation

As metallic character decreases as we move left to right and increases down to group and all the metals given are in $3^{rd}$period but their groups are different.

Na is in $1^{st}$group, Al is in ${13}^{th}$group , P is in ${15}^{th}$group and Ar is in ${18}^{th}$group.

which states that the correct order is Ar, P, Al, Na.