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What type of structure is zinc?
Distorted hexagonal close packed - 6 near neighbours in a aplane- 6 Zn atoms in adjacent planes are furtehr away (about 10%) -similar structure to Cadmium.
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.
Does a hexagonal prism have more faces then a hexagonal pyramid?
yes hexagonal prism: 7 hexagonal pyramid: 6
How many rectangular faces does a hexagonal prism have?
A hexagonal prism has 6 rectangular faces.
How many edges does a hexagonal figure have?
A hexagonal figure have 6 edges
How many parallelogram are in a hexagonal prism?
There are 6 parallelograms in a hexagonal prism.
Do a hexagonal prism have 6 faces?
A hexagonal prism has 8 faces
What shape has 6 triangular faces and one hexagonal face?
hexagonal pyramid
Similarities of a hexagon and hexagonal prism?
A hexagon has 6 sides and a hexagonal prism has a cross-section of 6 sides
How many edges does hexagonal pencil has?
If there is an eraser, then 12 edges (6 on the hexagonal pencils sides and 6 on the sharpened point) If there isn't any eraser, then 18 edges (6 on the hexagonal pencils sides, 6 on the sharpened point, and 6 on the top).
Number of atoms in hcp unit cell?
"There are 6 atoms in the hcp unit cell. The hex shape has six atoms at the points that are direct translations of each other making 1 atom for the top hex and one atom for the bottom hex. That's 2. The atom in the center of the top and center of the bottom are translations giving 1 more. That's 3. Then there are 3 atoms in the middle region of each cell bringing the total to 6." The answer should depend on how you choose your unit cell. In the primitive hexagonal cell we have 1 atom at each of the corners of the cell (each is "worth" 1/8) and 1 atom within the cell giving us 2 atoms/unit cell. (Note: the 'primitive hexagonal cell' above actually refers to the parallelpiped structure that the hexagonal unit cell consists of: the hexagonal 'unit' -it cannot technically be referred to as a unit cell, because unit cells are the most reduced form of the crystal structure- can be divided into 3 parallelepipeds.)
What is a prism with 2 hexagonal faces and 6 rectangular faces?
i think the answer is a hexagonal prism
