# Element X forms a chloride with the formula XCl2, which is a solid with a high melting point.

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Element X forms a chloride with the formula XCl2, which is a solid with a high melting point. X would most likely be in the same group of the Periodic Table as

(a) Na (b) Mg (c) Al (d) Si

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(a) X would most likely be in the same group of the Periodic Table as magnesium (Mg).