Question 250570

The electronic configuration for elements : Q = 2,7,  R = 2, 8, 8  P = 2, 5 and S = 2,8,7. Which statements

 below best states the relationship of the elements? Q and P are in the same group, Q , R and S are in the same period, Q and P are in the same period, R and S are all Inert gases