Which one of the following sets of ions represents a collection of isoelectronic species?

  • A
    $N^{3-}, O^{2-}, P^{3-}, S^{2-}$
  • B
    $Li^{+}, Na^{+}, Mg^{2+}, Ca^{2+}$
  • C
    $K^{+}, Cl^{-}, Ca^{2+}, Sc^{3+}$
  • D
    $Ba^{2+}, Sr^{2+}, K^{+}, Ca^{2+}$

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Similar Questions

Diagonal relationship is shown by

If the electronic configuration of $A^{-}$ is $[Ar] \ 4s^2 \ 3d^{10} \ 4p^1$,then $A^{+2}$ will belong to which group and period?

Match List-$I$ with List-$II$:
List-$I$ List-$II$
$A$. $Al^{3+} < Mg^{2+} < Na^{+} < F^{-}$ $I$. Ionisation Enthalpy
$B$. $B < C < O < N$ $II$. Metallic character
$C$. $B < Al < Mg < K$ $III$. Electronegativity
$D$. $Si < P < S < Cl$ $IV$. Ionic radii

Choose the correct answer from the options given below:

Maximum enthalpy change is associated with which of the following reactions?

Two statements are given below.
Statement $I$: Nitrogen has more ionization enthalpy and electronegativity than beryllium.
Statement $II$: $CrO_3$ and $B_2O_3$ are acidic oxides.
Correct answer is

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