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KVPY2014ChemistryClassification of Elements and Periodicity in Properties

The first ionization inthalpies for three elements are 1314,1680 , and 2080 ~kJ ~mol ⁻¹ , respectively. The correct sequence of the elements is

Options

  1. AO , F , and Ne
  2. BF , O and Ne
  3. CNe, F and O
  4. DF , Ne and O

Correct answer

A. O , F , and Ne

Step-by-step solution

As we move from left to right in period ionisaton energy increases.

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