The first four I.E. values of an element are 284, 412, 656 and 3210 kJ mol –1 . The…
Chemistry · JEE Main · NTA Exams — Classification of Elements and Periodicity in Properties
The first four I.E. values of an element are 284, 412, 656 and 3210 kJ mol–1. The number of valence electrons in the element are :
- one
- two
- three
- four
Answer
(C) three
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