Question

an element x/(atomic number17)racets with an element y(atomic number 12)to form a divalent halide. (1) where x and y are p

Answer 1

1)atomic number 17 - chlorine. Period - 3
group - 17.
atomic number 12 - period 3
group 2.
2)chlorine is nonmetal and magnesium is metal

Answer 2

1)atomic number 17 - chlorine. Period - 3

group - 17.

atomic number 12 - period 3

group 2.

2)chlorine is nonmetal and magnesium is metal