Table of Contents
- 1 How many tetrahedral voids are in ZnS?
- 2 What is the crystal structure and coordination number of ZnS?
- 3 What are the coordination number of Zn 2+ and S2 ions in ZnS?
- 4 What is coordination number of octahedral void and tetrahedral void?
- 5 What is coordination number of S2 in ZnS?
- 6 How many tetrahedral sites are occupied by Zn2+?
- 7 What are the octahedral voids in bcc crystals?
How many tetrahedral voids are in ZnS?
– Like ZnS in diamond Carbon occupies half of the tetrahedral voids or holes. – The total number of tetrahedral voids in fcc is 8. – Out of 8 voids, carbon occupies half of it means four. – Therefore the percentage of occupancy of the tetrahedral void by carbon in the diamond is 50\%.
What is the coordination number for a tetrahedral void?
four
And the coordination number of a tetrahedral void is four because of the void forms at the center of four spheres.
What is the crystal structure and coordination number of ZnS?
In zinc blende structure (ZnS), sulphide ions are face-centred and zinc is present in alternate tetrahedral voids. Formula is ZnS. Coordination number of Zn is 4 and that of sulphide is 4. Other substance that exists in this kind of a structure is BeO.
How do you find the coordination number of zinc?
Zinc blende (ZnS) has fee structure. It is an ionic crystal having 4:4 coordination number. S2− form fee lattice and Zn2+ has alternate tetrahedral voids. Hence, in zinc blende structure, the coordination number of cation (Zn2+) is 4.
What are the coordination number of Zn 2+ and S2 ions in ZnS?
4
C.N of Zn2+ = 4, S2- = 4.
How many tetrahedral voids are occupied by Zn ion in ZnS zinc blende structure?
In zinc blende structure, zinc ions occupy half of the tetrahedral sites. Each of the ions is 4 – coordinate and has local geometry. 1/2 of the tetrahedral sites that are four of the eight octants of the cube occupied by $Z{n^{2 + }}$ so therefore option A and option D both are the correct ones.
What is coordination number of octahedral void and tetrahedral void?
Octahedral voids are surrounded by six spheres, so its coordination number is 6 while tetrahedral void are surrounded by four spheres so its coordination number is 4.
What is the crystal structure of ZnS?
Zinc sulfide (ZnS) is a unique compound that forms two types of crystalline structures. These two polymorphs are wurtzite and zincblende (also known as sphalerite). Wurtzite has a hexagonal structure, while zincblende is cubic….Introduction.
| Site | Zn | S |
|---|---|---|
| Total | 4 | 4 |
What is coordination number of S2 in ZnS?
What is the coordination number of ZnS in this formula?
Formula is ZnS. Coordination number of Zn is 4 and that of sulphide is 4. Other substance that exists in this kind of a structure is BeO. Answer verified by Toppr
How many tetrahedral sites are occupied by Zn2+?
In Figure 1, notice how that only 1/2 of the tetrahedral sites (i.e. four of the eight octants of the cube) are occupied by Zn 2+ (red). Shown below are two crystallographic planes in zincblende. Notice that the (111) plane is identical to the (111) in NaCl. That’s not too surprising given that the anion lattice is identical.
What is the molecular geometry of zincblende?
To recap, zincblende is best thought of as a face-centered cubic array of anions cations occupying one half of the tetrahedral holes. Each ion is 4-coordinate and has local tetrahedral geometry.
What are the octahedral voids in bcc crystals?
As Vaishnavi has already explained, there are no regular octahedral voids in BCC crystals. By regular octahedron we mean a solid with 6 vertices, 12 equal edges and 8 equilateral triangles. Such voids are present in CCP and HCP crystals but not in BCC crystals.