structures of crystals

At ordinary temperatures and pressures, chlorides, bromides and iodides of lithium, sodium and rubidium and some halides of silver possess the NaCl structure with 6:6 co-ordination. On application of high pressure they transform to the CsCl structure with 8:8 co-ordination. On ..

X-Ray Study of Crystals - In a crystalline solid, the constituent particles (atoms, ions or molecules) are arranged in a regular order. An interaction of a particular crystalline solid with X-rays helps in investigating its actual structure. Crystals are found to act a..

In a crystalline solid, the constituent particles (atoms, ions or molecules) are arranged in a regular order. An interaction of a particular crystalline solid with X-rays helps in investigating its actual structure..

A study of crystal structure of silica reveals that it forms a giant molecule as shown belo..

Calculation of Density of a Cubic Crystal from its Edge Length. The edge length of a cubic crystal can be obtained from X-ray studies and knowing the crystal structure possessed by it so that the number of particles per unit cell are known, the density of..

fig 10.1 - Orientation of five d orbitals in octahedral environment In the case of a free ion, all the five d-orbitals have the same energy, i.e., they are degenerate (meaning energetically alike). When the ligand approaches the central metal ion, the electrons in d-orbital of the central metal ion..

Noble gases - All noble gases crystallize in ccp structure except helium which has hcp structure..

Iron forms three different types of oxides, which are FeO, Fe 2 O 3 and Fe 3 O 4 . These are non-stoichiometric (the ratio of cations and anions may vary from that given in the formula) and are easily oxidized or reduced into each other. These aspects can be explained on the basis of their cry..

All noble gases crystallize in ccp structure except helium which has hcp structure..