Which of the following neutral atoms has a lower first ionization energy than magnesium ($_{12}\text{Mg}$) despite possessing a greater nuclear charge?

A) Aluminum ($_{13}\text{Al}$)

B) Silicon ($_{14}\text{Si}$)

C) Phosphorus ($_{15}\text{P}$)

Ionization energy Knowledge-Based Practice

Chemistry · The Periodic Table · Chemistry · Periodic Trends

1 Chemistry practice questions on Ionization energy. Questions that assess core concepts and understanding.

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The Periodic Table · Chemistry

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