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∙ 12y agoIn square close-packed layer, a molecule is in contact with four of its neighbours. Therefore, the two-dimensional coordination number of a molecule in square close-packed layer is 4.
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∙ 12y agoA solid has tightly packed particles.
Density
If they're all standing up and tightly packed, perhaps 5,120 . If they're all resting flat on the floor, in a single layer and tightly packed, perhaps 2,230 .
they have a definite shape, the molecules are packed tight and it has volume and mass
97 :)
The coordination number in hexagonal close-packed (hcp) structures is 12. This means that each atom in an hcp lattice is in contact with 12 surrounding atoms.
The coordination number of Cs in CsCl (cesium chloride) is 8. This means that each Cs ion is surrounded by 8 Cl ions in a cubic closest-packed arrangement.
The coordination number for CaF2 is 8. This means that each calcium ion is surrounded by 8 fluoride ions and each fluoride ion is surrounded by 8 calcium ions in a cubic closest-packed structure.
The coordination number of zinc blende, which has a cubic closest-packed (CCP) structure, is 4. Each zinc atom is surrounded by four nearest-neighbor sulfur atoms, and vice versa.
Tightly packed, vibrating in place, has a definite shape and volume.
... per unit volume.
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Red blood cells are packed full of a protein called hemoglobin. Hemoglobin has a molecule of iron in each protein molecule. This hemoglobin is what carries oxygen. The oxygen binds with the iron.
One example of an ionic compound bonded in a three-dimensional pattern is sodium chloride (NaCl), also known as table salt. In this compound, sodium ions are arranged in a cubic closest-packed structure while chloride ions fill the gaps, forming a repeating three-dimensional lattice structure.
bonus pack
It is easy to pour a liquid rather than solids because the molecule makeup of fluid is less packed than the molecule makeup of solids. In other words, the molecules of solids are more tightly packed than of fluids.
known as conduction. In this process, heat energy is transferred from hotter to cooler regions within a material. Conduction occurs in solids, where molecules are closely packed and can pass on heat energy through collisions.