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-
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