Question

element x forms a chloride with the formula which is solid with a high melting point.x would most likely to be in the same group of the periodic table

Answer 1

Answer:

From the formula XCl2 we see that one atom of X combines with 2 atoms of Cl this means X has a valency of 2 just like Magnesium. (Remember the formula of magnesium chloride is MgCl2).

Na has valency 1 (NaCl)

Al has valency 3 (AlCl3)

Si has valency 4 (SiCl4)