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An element X combines with hydrogen to form a compound XH3. The element X is placed on the right side of the periodic table. What is true about the element X?A. Has 3 valence electronsB. Is a metal and is solid.C. Is a non-metal and is a gas.D. Has 5 valence electrons.E. XH3 reacts with water to form a basic compound.

Answer»

An element X combines with hydrogen to form a compound XH3. The element X is placed on the right side of the periodic table. What is true about the element X?
A. Has 3 valence electrons

B. Is a metal and is solid.

C. Is a non-metal and is a gas.

D. Has 5 valence electrons.

E. XH3 reacts with water to form a basic compound.



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