Question

Element X forms a chloride with the formula XCl2
. X would most likely
be in the same group of the periodic table as :
(a) Na (b) Mg
(c) Si (d) Al

Answer 1

b. mg is the correct answer

Answer 2

Element X would most likely be MG because when chlorine reacts with Magnesium it forms MgCl2

When it reacts with Na, it forms NaCl

When it reacts with SI it forms SiCl4

When it reacts with AL it forms AlCl3