Advertisements
Advertisements
Question
The coordination number of spheres in the hcp lattice in three dimension is ______.
Options
2
6
4
12
Advertisements
Solution
The coordination number of spheres in hcp lattice in three dimension is 12.
APPEARS IN
RELATED QUESTIONS
Choose the most correct answer.
In crystal lattice formed by bcc unit cell, the void volume is _______.
The coordination number of atoms in bcc crystal lattice is ______.
Choose the most correct answer.
A compound forms hcp structure. Number of octahedral and tetrahedral voids in 0.5 mole of substance is respectively _______.
Answer the following in brief.
How are the spheres arranged in first layer of simple cubic close-packed structures? How are the successive layers of spheres placed above this layer?
How are tetrahedral and octahedral voids formed?
Third layer of spheres is added to second layer so as to form hcp or ccp structure. What is the difference between the addition of third layer to form these hexagonal close-packed structures?
The number of tetrahedral voids are formed if the number of atoms in a crystal is N/2.
The number of octahedral voids formed in 0.5 mol of a compound forming hcp structure?
A metal crystallizes in bcc lattice with edge length 4.48 Å. The radius of the metal atom is ___________ Å.
A metallic element crystallises in simple cubic lattice. If edge length of the unit cell is 3Å, with density 8 g/cc, what is the number of unit cells in 100 g of the metal?
(Molar mass of metal = 108 g/mol)
A compound has fcc structure. If density of unit cell is 3.4 g cm−3, what is the edge length of unit cell?
(Molar mass = 98.99)
The coordination number of Rh in the complex [Rh(NH3)3(SCN)3] is ____________.
Which of the following is CORRECT for the two dimensional arrangement of spheres given below?
Zinc forms hcp structure. What is the number of tetrahedral voids formed in 0.3 mol of it?
The atoms of element 'Y' form hexagonal close packing and the atoms of element X occupies `3/4` th portion of the number of tetrahedral voids. The formula of the compound formed by X and Y is ____________.
Which of the following has hcp crystal structure?
Zinc forms hcp structure. What is the number of octahedral voids formed in 0.2 mol of it?
What is the coordination number of cation in ionic compound if the type of hole occupied by cation is cubic?
A metallic element crystallizes in simple cubic lattice. If edge length of the unit cell is 3Å, with density 8 g/cc, what is the number of unit cells in 108 g of the metal?
(Molar mass of metal = 100 g/mol)
What is the coordination number of cation in ionic compound if the type of hole occupied by cation is octahedral?
Aluminium crystallises in a cubic close-packed structure with a unit cell edge length of 353.6 pm. What is the radius of Al atom? How many unit cells are there in 1.00 cm3 of Al?
Which among the following metals crystallise as a simple cube?
The coordination number of cobalt in the complex [Co(en)2Br2]Cl2 is ______.
The number of octahedral sites per sphere in ccp structure is ______.
Predict the type of cubic lattice of a solid element having edge length of 400 pm and density is 6.25 g/ml.
(Atomic mass of element = 60)
A metallic crystal crystallizes into a lattice containing a sequence of layers AB AB AB......Any packing of spheres leaves out voids in the lattice. What percentage of volume of this lattice is empty space?
What is the minimum number of spheres required to develop an octahedral void?
