Select the false statement below. A. The following process is an endothermic pro

Question

Select the false statement below.

A. The following process is an endothermic process and represents the first ionization energy of an atom A: A(g) ? A1+(g) + e1-
B. Phosphorus has a greater first ionization energy than magnesium, and the reason for this is because P has a greater effective nuclear charge (Zeff) than Mg.
C. Fluorine has a greater first ionization energy than iodine, and the reason for this is because fluorine has a greater amount of shielding of outer electrons by inner electrons than does iodine.
D. The first ionization energy of an atom is smaller than the second ionization energy of the same atom.

Explanation / Answer

C. Fluorine has a greater first ionization energy than iodine, and the reason for this is because fluorine has a greater amount of shielding of outer electrons by inner electrons than does iodine.

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