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STD 12 - 4. d and f- block elements — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 - 4. d and f- block elements4 Marks
MCQ
Which of the following has highest ionic radii
  • ✓
    $C{r^{ + 3}}$
  • B
    $M{n^{ + 3}}$
  • C
    $F{e^{ + 3}}$
  • D
    $C{o^{ + 3}}$
✓

Answer

Correct option: A.
$C{r^{ + 3}}$
a
(a)${\rm{Ionic}}\,{\rm{ radii}}\,{\rm{ }} \propto {\rm{ }}\frac{{\rm{1}}}{{{\rm{Atomic No}}{\rm{.}}}}$ Ionic radius decreases from left to right in a period.

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