Which statement is correct

MCQ

A
For potassium, the atomic radius $<$ ionic radius; but for bromine, the atomic radius $>$ ionic radius
B
For potassium and bromine both, the atomic radii $>$ ionic radii
C
For potassium and bromine both, the atomic radii $<$ ionic radii
✓
For potassium, the atomic radius $>$ ionic radius but for bromine, the atomic radius $<$ ionic radius

✓

Answer

Correct option: D.

For potassium, the atomic radius $>$ ionic radius but for bromine, the atomic radius $<$ ionic radius

d
Potassium a metal so it will lose an electron. The ion corresponds to potassium is $K ^{+}$and it will have smaller radius than the atomic radius of potassium. while chlorine is a non-metal so it will accept an electron. The ion correspons to chlorine is $Cl ^{-}$and it will have greater radius than atomic radius of chlorine.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from 3. Classification of elements and periodicity in properties→3. Classification of elements and periodicity in properties — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

A reagent used to test for unsaturation of allkene is

→

Aluminium is more reactive than iron. But aluminium is less easily corroded than iron because

→

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$

Assertion $A:$ In equation $\Delta_r G =- nFE _{\text {cell }}$ value of $\Delta_r G$ depends on $n$.

Reasons $R$ : $E_{\text {cell }}$ is an intensive property and $\Delta_{ r } G$ is an extensive property.

In the light of the above statements, choose the correct answer from the options given below

→

Match List $I$ with List $II$

List $I$ (molecules/ions)	List $II$ (No. of lone pairs of $e ^{-}$ on central atom)
$A$ $IF_7$	$I$ Three
$B$ $ICl^{-}_4$	$II$ One
$C$ $XeF_6$	$III$ Two
$D$ $XeF_2$	$IV$ Zero