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  • How many of the following metal ions will have high ionization enthalpy?      <img alt="\mathrm{Eu}^{2+}, \mathrm{Gd}^{3+}, \mathrm{Tm}^{2+}, \mathrm{Dy}^{3+}, \mathrm{Ho}^{2+

How many of the following metal ions will have high ionization enthalpy?
     \mathrm{Eu}^{2+}, \mathrm{Gd}^{3+}, \mathrm{Tm}^{2+}, \mathrm{Dy}^{3+}, \mathrm{Ho}^{2+}, \mathrm{Yb}^{2+}, \mathrm{Tb}^{3+}

Option: 1

2


Option: 2

3


Option: 3

4


Option: 4

5


Answers (1)

best_answer

\mathrm{Eu}^{2+} and \mathrm{Gd}^{3+} will have half-filled f-orbital and \mathrm{Yb}^{2+}will have full filled f-orbital.

Posted by

Kuldeep Maurya

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