Which of the following orders of ionic radii is correctly represented?

Question

Which of the following orders of ionic radii is correctly represented? (A) H->H>H+ (B)  textA textl3 +> textM textg2 +>N3 - (C) F->O2 -> textN texta+ (D)  textN texta+>F->O2 -

Tardigrade Admin · Accepted Answer

As size propto (e/p) ratio for ions. Size of anion > size of atom > size of cation H->H>H+ In case of F-,O- 2,Na+ radii order is O- 2>F->Na+ correct order for Al+ 3,Mg+ 2,N- 3 is N- 3>Mg+>Al+ 3

Q. Which of the following orders of ionic radii is correctly represented?

$H^{-} > H > H^{+}$

$A l^{3 +} > M g^{2 +} > N^{3 -}$

$F^{-} > O^{2 -} > N a^{+}$

$N a^{+} > F^{-} > O^{2 -}$

As size $\propto \frac{e}{p}$ ratio for ions.
Size of anion > size of atom > size of cation
$H^{-} > H > H^{+}$
In case of $F^{-}, O^{- 2}, N a^{+}$
radii order is $O^{- 2} > F^{-} > N a^{+}$
correct order for $A l^{+ 3}, M g^{+ 2}, N^{- 3}$ is $N^{- 3} > M g^{+} > A l^{+ 3}$

Q. Which of the following orders of ionic radii is correctly represented?

H−>H>H+

Al3+>Mg2+>N3−

F−>O2−>Na+

Na+>F−>O2−

As size ∝pe​ ratio for ions. Size of anion > size of atom > size of cation H−>H>H+ In case of F−,O−2,Na+ radii order is O−2>F−>Na+ correct order for Al+3,Mg+2,N−3 is N−3>Mg+>Al+3

$H^{-} > H > H^{+}$

$A l^{3 +} > M g^{2 +} > N^{3 -}$

$F^{-} > O^{2 -} > N a^{+}$

$N a^{+} > F^{-} > O^{2 -}$

As size $\propto \frac{e}{p}$ ratio for ions.
Size of anion > size of atom > size of cation
$H^{-} > H > H^{+}$
In case of $F^{-}, O^{- 2}, N a^{+}$
radii order is $O^{- 2} > F^{-} > N a^{+}$
correct order for $A l^{+ 3}, M g^{+ 2}, N^{- 3}$ is $N^{- 3} > M g^{+} > A l^{+ 3}$