CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Vanderwaal Radius

In LiI Crysta...

Question

In LiI Crystal, I- ions form a cubical closest packed arrangement and Li+ ions occupy octahedral holes. Calculate the limiting ionic radii of Li+ and I-- if a= 600pm.

A

65 pm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

87.84 pm

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

24 pm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

12.8 pm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
87.84 pm

Suggest Corrections

thumbs-up

2

Similar questions

Q. In LiI Crystal,

I^{-}

ions form a cubical closest packed arrangement and

L i^{+}

ions occupy octahedral holes. What is the relationship between the edge-length of the unit cells and the radii of the

I^{-}

ions? Calculate the limiting ionic radii of

L i^{+}

I^{-}

M g O

crystallizes in a cubic type crystal system. The ionic radii for

{M g}^{2 +}

O^{2 -}

0.066

0.140 n m

respectively. One can conclude that

{M g}^{2 +}

ions occupy :-
a) a cubic hole in a simple cubic structure.
b) every tetrahedral hole in a close packed structure.
c) an octahedral hole in a cubic close packed structure.
d) every other tetrahedral hole in a close packed structure.

Q. In chromium chloride

(C r C l_{3})

C l^{-}

ions have cubic close packed arrangement and

C r^{3 +}

ions are present in the octahedral holes. The fraction of the total number of holes occupied is:

Q. Aluminium oxide crystallizes with aluminium ions in 2/3 of the line octahedral and 1/3 octahedral holes remaining vacant in a closest packed array of oxide ions. What is the formula of aluminium oxide?

Q. If the unit cell of a mineral has cubic packed (c.c.p.) array of oxygen atoms with

m

fraction of octahedral holes occupied by aluminium ions and

n

fraction of tetrahedral holes occupied by magnesium ions, m and n respectively are:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Size of an Atom or Ion

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Vanderwaal Radius

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon