Don't forget you can use the interactive periodic table.

Question

Which chemical formula represents the most likely combination between Strontium, Sr and Iodine, I?

(1 point)
Responses

SrI
cap s r cap i

SrI2
cap s r cap i sub 2

Sr2I
cap s r sub 2 cap i

Sr7I2
cap s r sub 7 cap i sub 2

Answer 1

The most likely combination between Strontium (Sr) and Iodine (I) is represented by the formula SrI2.

This is because Strontium is a Group 2 metal that typically forms a +2 charge, and Iodine is a Group 17 nonmetal that typically forms a -1 charge. To balance the charges, one Strontium ion (+2) will combine with two Iodine ions (-1 each). Therefore, the correct chemical formula is SrI2.