- double-centered hexagonal lattice
- дважды центрированная гексагональная решётка
English-russian dictionary of physics. 2013.
English-russian dictionary of physics. 2013.
Leech lattice — In mathematics, the Leech lattice is an even unimodular lattice Λ24 in 24 dimensional Euclidean space E24 found by John Leech (1967). Contents 1 History 2 Characterization 3 Properties … Wikipedia
Space group — In mathematics and geometry, a space group is a symmetry group, usually for three dimensions, that divides space into discrete repeatable domains. In three dimensions, there are 219 unique types, or counted as 230 if chiral copies are considered… … Wikipedia
Protactinium — thorium ← protactinium → uranium Pr ↑ Pa ↓ … Wikipedia
U (disambiguation) — U is the twenty first letter of the Latin alphabet.U may also refer to:Mathematics* cup, union (set theory) * U set, a set of uniqueness * U, the unitary groupChemistry* Uranium, a metallic chemical element * Unified atomic mass unit, used to… … Wikipedia
Crystal structure — In mineralogy and crystallography, crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice… … Wikipedia
X-ray crystallography — can locate every atom in a zeolite, an aluminosilicate with many important applications, such as water purification. X ray crystallography is a method of determining the arrangement of atoms within a crystal, in which a beam of X rays strikes a… … Wikipedia
Curium — This article is about the chemical element. For the ancient city located in Cyprus, see Kourion. americium ← curium → berkelium … Wikipedia
Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) … Wikipedia
Samarium — promethium ← samarium → europium ↑ Sm ↓ … Wikipedia
Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr … Wikipedia
Metallic bond — Metallic bonding is the electrostatic attractive forces between the delocalized electrons, called conduction electrons, gathered in an electron sea , and the positively charged metal ions. Understood as the sharing of free electrons among a… … Wikipedia