JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
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
- A \(2\)
- B \(3\)
- C \(4\)
- D \(5\)
Answer & Solution
Correct Answer
(B) \(3\)
Step-by-step Solution
Detailed explanation
Let suppose element \(X \Rightarrow\) \({X_{\left( g \right)}}\xrightarrow[{800}]{{I{E_1}}}X\mathop {\left( g \right)}\limits^ + \xrightarrow[{2427}]{{I{E_2}}}X(\mathop {g)}\limits^{ + 2} \xrightarrow[{3658}]{{I{E_3}}}\)…
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