Which one of the following has the highest ionic character?
- A. BeF_{3}
- B. SiO_{2}
- C. NCl_{3}
- D. K_{2}S ✓
Correct Answer: D. K_{2}S
Explanation
Ionic character depends on the electronegativity difference between the combining atoms. K_{2}S forms between a highly electropositive alkali metal (Potassium) and a non-metal (Sulfur), yielding the highest electronegativity difference and greatest ionic character among the given options.
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