Chemistry

Question Analysis
This question involves comparing properties of isoelectronic species. The main focus is on understanding the relationship between nuclear charge, electron attraction, and ionization energy for particles with the same electron configuration.

Key Concept Explanation
Isoelectronic species have the same number of electrons but different numbers of protons (nuclear charge). A higher nuclear charge exerts a stronger attraction on the shared electrons, making it harder to remove an electron and resulting in higher ionization energy.

Step-by-Step Solution
1. Recall the definition of isoelectronic species (same electron count, different proton count).
2. Link higher nuclear charge to stronger electron attraction.
3. Connect str...