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  3. Chemistry
  4. Which one of the following has maximum ionization potential?

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Q. Which one of the following has maximum ionization potential?

Rajasthan PMTRajasthan PMT 2003Classification of Elements and Periodicity in Properties

Solution:

The ionization potential is the amount of energy required to take out the most loosely held electron from a neutral isolated atom. By increasing the atomic size the ionization potential decreases. Ionization potentialo $\frac{1}{\text { atomic size }}$ Be is the smallest atom hence it has maximum ionization potential.