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Which of the following pairs of elements has the greatest difference in electronegativity?

Chemistry
WAEC 2020

Which of the following pairs of elements has the greatest difference in electronegativity?

  • A. Na and F
  • B. Na and CI
  • C. Na and Br
  • D. Na and I
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Correct Answer: Option A
Explanation

- sodium has an electro negativity of 0.93

- Hence; sodium and flourine have the highest difference.

Fluorine 4.0
Chlorine 3.0
Bromine 2.8
Iodine 2.5
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