Select the false statement below. A) Carbon has a greater first ionization energy than lithium, and...

Select the false statement below.

A) Carbon has a greater first ionization energy than lithium, and the reason for this is because C has a greater effective nuclear charge (Zeff) than Li.

B) The first ionization energy of an atom is larger than the second ionization energy of the same atom.

C) Magnesium has a greater first ionization energy than calcium, and the reason for this is because magnesium has a lesser amount of shielding of outer electrons by inner electrons than does calcium.

D) The following process is an endothermic process and represents the first ionization energy of an atom A:

A(g) → A1+(g) + e1-

Expert Solution

The false statement is

B) The first ionization energy of an atom is larger than the second ionization energy of the same atom.

EXPLANATION:

A(g) → A¹⁺(g) + e^1- First Ionization

A¹⁺(g) → A²⁺(g) + e^1- Second Ionization

During the first Ionization,the negatively charged electron is removed from a neutral atom whereas during the second ionization an electron is removed from a mono positive ion.

Removal of the negatively charged electron from a mono positive ion.is more difficult than the removal of the negatively charged electron from a neutral atom. Hence the second ionization energy is always greater than the first ionization energy

Therfore, the statement 'The first ionization energy of an atom is larger than the second ionization energy of the same atom' is a false statement.

queen_honey_blossom answered 2 years ago

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