The five successive ionization enthalpies of an element are 800, 2427, 3658, 25024 and 32824 kJ mol–1. The number of valence electrons in the element is :
Solution
There is a sudden jump after 3<sup>rd</sup> I.E. due to
attainment of noble gas configuration.
<br><br>So, the number of valence electrons in this
element are 3.
About this question
Subject: Chemistry · Chapter: Periodic Table and Periodicity · Topic: Periodic Trends
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