Which of the following radius order is not correct?

  • A
    $Ti < Zr \approx Hf$
  • B
    $B < Al \approx Ga < In \approx Tl$
  • C
    $Sc < Y \approx La$
  • D
    $O < N < S < P$

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Similar Questions

Which of the following orders of atomic/ionic radii is $NOT$ correct?

Arrange the following elements in the increasing order of their atomic radii:
$(i)$ $O, N, F, B, Be, Li, C$
$(ii)$ $P, S, Mg, Na, Al, Si, Cl$
$(iii)$ $K, Na, Li, Cs, Rb$
$(iv)$ $Cl, F, I, At, Br$

Assertion $(A)$: $Mg^{2+}$ and $Al^{3+}$ are isoelectronic but the magnitude of the ionic radius of $Al^{3+}$ is less than that of $Mg^{2+}$.
Reason $(R)$: The effective nuclear charge on the outermost electrons in $Al^{3+}$ is greater than that in $Mg^{2+}$.
The correct option among the following is:

The radius of isoelectronic species:

Which ion has the greatest radius among the following?

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