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Choose the correct order of radius...

Choose the correct order of radius

A

`Li gt Be gt B gt C gt N gt O gt F`

B

`Li lt Na lt K lt Rb lt Cs`

C

`Mn gt Mn^(+2) gt Mn^(+2) gt Mn^(+3) gt Mn^(+4)`

D

`O gt O^- gt O^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
Factors affecting atomic size are:
(i) Atomic radius `prop1/("Effective nuclear charge"), LigtBegtBgtCgtNgtOgtF`
Atomic radius `prop` No. of shells , `LiltNaltKltRbltCs`
(iii) Atomic size `prop1/("Magnitude of +ve charge") , MnltMn^(2+)ltMn^(3+)ltMn^(4+)`
(iv) Atomic size `prop` Magnitude of -ve charge , Thus the correct order is `OgtO^(-)gtO^(2-)`
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