crystal element
81Neoklassische Theorie — Dieser Artikel wurde aufgrund inhaltlicher und/oder formaler Mängel auf der Qualitätssicherungsseite des Portals Wirtschaft eingetragen. Du kannst helfen, indem Du die dort genannten Mängel beseitigst oder Dich an der Diskussion beteiligst. Unter …
82List of fictional elements, materials, isotopes and atomic particles — This list contains chemical elements, materials, isotopes or (sub)atomic particle that exist primarily in works of fiction (usually fantasy or science fiction). No actual periodic elements end in ite , though many minerals have names with this… …
83Samarium — promethium ← samarium → europium ↑ Sm ↓ …
84chemical bonding — ▪ chemistry Introduction any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …
85Silicon — Not to be confused with the silicon containing synthetic polymer silicone. aluminium ← silicon → phosphorus C ↑ Si ↓ Ge …
86Protactinium — thorium ← protactinium → uranium Pr ↑ Pa ↓ …
87Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
88X-ray fluorescence — (XRF) is the emission of characteristic secondary (or fluorescent) X rays from a material that has been excited by bombarding with high energy X rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis,… …
89Curium — This article is about the chemical element. For the ancient city located in Cyprus, see Kourion. americium ← curium → berkelium …
90Rhenium — tungsten ← rhenium → osmium Tc ↑ Re ↓ Bh …
