What is the trend for ionization energy across a period in the periodic table?
CHEMISTRY
JAMB 2023
What is the trend for ionization energy across a period in the periodic table?
- A. Increases from left to right.
- B. Remains constant
- C. Varies randomly
- D. Decreases from left to right
Correct Answer: A. Increases from left to right.
Explanation
Ionization energy generally increases from left to right across a period. Ionization energy is the energy required to remove an electron from a neutral atom, and as you move from left to right, the atomic size decreases, making it harder to remove an electron, and thus, the ionization energy increases.
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