TS EAMCET · Chemistry · Structure of Atom
An element in +2 oxidation state has 24 electrons. The atomic number of the element and the number of unpaired electrons in it respectively are
- A 24 and 4
- B 26 and 4
- C 24 and 2
- D 26 and 5
Answer & Solution
Correct Answer
(B) 26 and 4
Step-by-step Solution
Detailed explanation
\[ \begin{aligned} & { }_{26} \mathrm{Fe}=1 s^2, 2 s^2 2 p^6, 3 s^2 3 p^6, 4 s^2, 3 d^6 \\ & { }_{26} \mathrm{Fe} \longrightarrow{ }_{26} \mathrm{Fe}^{2+} \end{aligned} \] Hence, atomic number of iron \((\mathrm{Fe})\) is 26 and \(\mathrm{Fe}^{2+}\) have 4 unpaired electrons in…
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