11. Which pair of elements will form the most stable compound, as far as bond energy is involved?

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11. Which pair of elements will form the most stable compound, as far as bond energy is involved? Electronegativities of Unknown Elements Q 0.9 X 3.0 R 1.0 Z 4.0 T 2.8 (A) Q and Z (B) R and X (C) T and Z (D) T and X (E) Q and T 

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