Below Are Data on the First Four Ionization Energies for a Fictitious

question 78

Multiple Choice

Below are data on the first four ionization energies for a fictitious element X.
First ionization energy = 500 kJ/mol
Second ionization energy = 2000 kJ/mol
Third ionization energy = 3500 kJ/mol
Fourth ionization energy = 25000 kJ/mol
From the data,which of the following statements is incorrect?

• A)The third ionization energy is greater than the second ionization energy because X²⁺ has a bigger charge than X⁺.
• B)X could belong to Group IIIA.
• C)X could belong to Group IIIB.
• D)X could belong to group VA.
• E)The fourth ionization energy is much greater than the third ionization energy because X³⁺ consists of a noble-gas core or a pseudo-noble-gas core.

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