Which would be the correct formula for a compound of strontium (Upper S r) and chlorine (Upper C l)?

Question

Answer options with 5 options
A.
Upper S r Upper C l

D.
Upper S r Subscript 2 Upper C l

B.
Upper S r Upper C l Subscript 2

E.
Upper S r Subscript 2 Upper C l Subscript 3

C.
Upper S r Upper C l Subscript 3

Answer 1

The correct formula for a compound of strontium (Sr) and chlorine (Cl) is based on the charges of the ions they form. Strontium typically has a charge of +2 (as \( \text{Sr}^{2+} \)), and chlorine has a charge of -1 (as \( \text{Cl}^{-} \)).

To balance the charges in the compound, you would need two chlorine ions for every one strontium ion. Thus, the correct formula would be:

B. \( \text{SrCl}_2 \)

So, the answer is B.