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Simple reason - It violates the cubic symmetry.
To see it from another perspective - Base centered cubic lattice is equivalent to a simple tetragonal lattice. Draw two unit cells adjacent to each other. Then connect the base center points to the corener points which are shared by these two unit cells. Then connect the two base centered point in each unit cell. Now you have a simple tetragonal lattice. Simple tetragonal lattice has one lattice point per unit cell compared to two lattice point per unit cell of base centered lattice. Always the lower lattice point lattice is considered for a given symmetry. Because of symmetry breaking, the symmetry of base centered cubic lattice is same as tetragonal lattice.
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoThis structure is possible. If you draw it though, it turns out that it is equivalent to a tetragonal lattice.
Wiki User
∙ 12y agobecause of the gravity of the earth has been cancelled to the moon flight because tomorrow is the end of the world but tomorrow is another day.
Wiki User
∙ 11y agoorospo cocuu
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The lattice structure in a metal is?
A metallic lattice consists of positive ions in a 'sea' of outershell negative electrons which are delocalised and mobile through the metal structure. The lattice is held together by strong forces of attraction between the mobile electrons and the positive ions.
What Simple cubic body-centered cubic and face-centered cubic unit cells all have the same shape. How are they different?
The body-centered cubic system has a lattice point at each of the eight corner points of the unit cell plus one lattice point in the centre. Thus it has a net total of 2 lattice points per unit cell ( 1⁄8 × 8 + 1).The face-centered cubic system has lattice points on the faces of the cube, that each gives exactly one half contribution, in addition to the corner lattice points, giving a total of 4 lattice points per unit cell ( 1⁄8 × 8 from the corners plus  1⁄2 × 6 from the faces).
What are the three differences packing arrangements found in metallic crystals?
Most metals and alloys crystallize in one of three very common structures: body-centered cubic (bcc), Li is an example of bcc , hexagonal close packed (hcp) Au is an example of hcp, or cubic close packed (ccp, also called face centered cubic, fcc) Ag is an example of fcg. The yield strength of a "perfect" single crystal of pure Al is ca. 10^6 psi.
How are the carbon atoms arranged in graphite?
The atoms are bonded together in a rigid network which makes diamond very hard. Each carbon atom forms 4 covalent bonds
How many types of crystals present?
The problem is that "types" is not a well-defined word in the contest of this problem. Do you mean morphology, lattice system, space group, or what? There are more or less infinitely many possible morphologies (I'm pretty sure, though I wouldn't necessarily want to try to prove it, that it's a countable infinity). There are 7 lattice systems: triclinic, monoclinic, orthorhombic, rhombohedral, tetragonal, hexagonal, and cubic. There are 230 distinct space groups, and no I'm not going to list them. Get a graduate-level chemistry book on X-ray crystallography if you really want the details.
Why there is no face centered hexagonal?
orospo cocuu
What is a face-centered cubic lattice?
face centred cubic lattice is one in which there a atoms at the each edge and at the centre of each face
The lattice structure in a metal is?
A metallic lattice consists of positive ions in a 'sea' of outershell negative electrons which are delocalised and mobile through the metal structure. The lattice is held together by strong forces of attraction between the mobile electrons and the positive ions.
What is a Hexagonal close packed lattice and what is sign it?
What is a Hexagonal close packed lattice and what is sign it?"
What does the structure look like with NaCl?
It is a face-centered cubic lattice.
What is the name of a repeating structure for salt?
It is a face-centered cubic lattice.
What is the structure of metals?
Normally lead metal will have a cubic face centered lattice structure.
What is the element gold's texture?
The crystal structure of gold is lattice face centered cubic.
What is the arrangment of ions in crystals?
They are in a repeating, geometric pattern.A crystal's ions are arranged in an orderly, repeating, geometric pattern. Here's a link:http://www.scienceclarified.com/Co-Di/Crystal.htmlthey are happyin a orderly 3-D arrangement
What is a scientific way of saying the texture og gold?
Gold has a face centered cubic lattice.
What is the structure of lead metal?
Normally lead metal will have a cubic face centered lattice structure.
What is the structure of salt and water?
The crystalline structure of sodium chloride is face centered cubic.The crystalline structure of water is hexagonal.
