Advertisements
Advertisements
Question
An ionic crystal lattice has `r^+/r` radius ratio of 0.320, its coordination number is __
(a) 3
(b) 4
(c) 6
(d) 8
Advertisements
Solution
An ionic crystal lattice has `r^+/r` radius ratio of 0.320, its coordination number is 4
APPEARS IN
RELATED QUESTIONS
Describe triclinic crystal lattice with the help of a diagram.
Define the following term: Primitive unit cells
How will you distinguish between the following pair of terms?
Crystal lattice and unit cell
Give the significance of a ‘lattice point’.
Which of the following lattices has the highest packing efficiency (i) simple cubic (ii) body-centred cubic and (iii) hexagonal close-packed lattice?
What is meant by the term ‘coordination number’?
An ionic crystal lattice has limiting value of radius ratio as 0.414 to 0.732; the co-ordination number of its cation is _______.
(A) 6
(B) 4
(C) 3
(D) 12
Calculate the number of atoms present in 2 gram of crystal which has face-centred cubic
(FCC) crystal lattice having edge length of 100 pm and density 10 gcm−3
In the complexes `[Fe(CN)_6]^(3-)` and `[pt(en) (H_2O)_2(NO_2 (Cl)^(2+)]``the respective oxidation numbers of central metal atoms are
1) +3 and +4
2) +6 and + 4
3) +6 and +3
4) +3 and + 3
For a crystal of sodium chloride, state the type of lattice in which it crystallises.
Complete the following statement by selecting the correct alternative from the choices given:
In a face-centered cubic lattice, atom (A) occupies the comer positions and atom (B) occupies the face centre positions. If one atom of (B) is missing from one of the face-centered points, the formula of the compound is:
In a crystal of diamond:
- How many carbon atoms are present per unit cell?
- What type of lattice does diamond crystallise in?
- How many carbon atoms surround each carbon atom?
- How are they arranged?
In a solid atom M occupies ccp lattice and `(1/3)` of tetrahedral voids are occupied by atom N. find the formula of solid formed by M and N.
A solid compound XY has NaCl structure. if the radius of the cation is 100 pm, the radius of the anion will be
Why ionic crystals are hard and brittle?
How many three-dimensional crystal lattices are possible?
The lattice site in a pure crystal cannot be occupied by ______.
A particular solid is very hard and has a high melting point. In solid state, it is a non-conductor and in molten state, it is a conductor of electricity. Classify the solid ______.
How many unit cells are present in a cube-shaped ideal crystal of NaCl of mass 1.00 g? [Atomic masses: Na = 23, Cl = 35.5]
