Question

element P Q R and S are atomic number 11 15 17 18 respectively which of them are reactive nonmetal p and q q and R P and R and S​

Answer 1

Answer:

r is most reactive non meta

P is a metal

S is a noble gas

Answer 2

Answer:

11 is Na

15 is P

17 Cl

18 Ar

As the non metallic character increases from left to right in a group so the answer should be Q and R

Ar is not a non metal its a noble gas..