Which of the following reactions is accompanied by the first ionization energy of an element X?

  • A X +(aq) → X 2+ (aq) + e-
  • B X - (g) → X(g) + e-
  • C X+ (g) → X2+ +e-
  • D X (g) → X+ (g) +e-
  • E X(s) → X + (g) + e-
waec 1994chemistry

The correct answer is D. X (g) → X+ (g) +e-

No explanation given
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