Chemistry

Question Analysis
This question involves identifying the Period 2 element with the highest first ionization energy. The main focus is on applying the period trend and recognizing the extreme value for noble gases.

Key Concept Explanation
First ionization energy generally increases across a period from left to right. Noble gases, which have full valence electron shells, have the highest ionization energy in their respective periods because removing an electron from a stable, full shell requires a large amount of energy.

Step-by-Step Solution
1. All options are in Period 2.
2. Recall the period trend: ionization energy increases left to right.
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