WAEC - Chemistry (2020 - No. 15)
Which of the following pairs of elements has the greatest difference in electronegativity?
Na and F
Na and CI
Na and Br
Na and I
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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