An element X from group 2 of the Periodic Table reacts with Y from group 17 to form a compound. Give the formula of the compound.
A. XY2
B. XY
C. X2Y
D. (XY)2Answer
Answer:A
An element X from group 2 of the Periodic Table reacts with Y from group 17 to form a compound. Give the formula of the compound.
A. XY2 B. XY C. X2Y D. (XY)2Answer