Which of the following has the maximum number of unpaired electrons?

  • A
    $Fe^{3+}$
  • B
    $Fe^{2+}$
  • C
    $Co^{2+}$
  • D
    $Co^{3+}$

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Similar Questions

The atomic number of an element is $26$. The element shows:

In the series $Sc (Z=21)$ to $Zn (Z=30)$,the enthalpy of atomisation of zinc is the lowest,i.e.,$126 \ kJ \ mol^{-1}$. Why?

Compare the stability of the $+2$ oxidation state for the elements of the first transition series.

Which of the following is ferromagnetic in nature?

When are $d$-block elements considered as transition elements?

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