The element with the highest first ionization potential is
Correct answer: C. Nitrogen
- A. Boron
- B. Carbon
- C. Nitrogen
- D. Oxygen
Explanation
The correct answer is Nitrogen. Nitrogen has the highest first ionization potential among the given options because its electronic configuration results in a half-filled p subshell, which is exceptionally stable. This stability means that more energy is required to remove an electron compared to elements without such configurations. Boron and carbon have lower ionization potentials due to less stable configurations. Oxygen, despite being to the right of nitrogen in the periodic table, has a lower ionization potential because the removal of an electron leads to a stable half-filled configuration, making it easier to ionize.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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