Which electron configurations represent the first two elements in Group 17 (7A) of the Periodic Table?
A
1s22s1 and 1s22s2

B
1s22s22p6 and [Ne]3s23p5

C
1s22s22p5 and [Ne]3s23p5

D
1s22s2 and 1s22s22p1

Y=‐1x + 7 if y has a value of ‐24 what is the value of x?

Why did southern business leaders want to increase the number of slaves

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.