Rubidium
51Rubidium — Ru|bi|di|um 〈n.; Gen.: s; Pl.: unz.; chem. Zeichen: Rb〉 chem. Element, silberweißes Alkalimetall, Ordnungszahl 37 [Etym.: <lat. rubidus »rot«] …
52Rubidium — Rubi̱dium [zu lat. rubidus = dunkelrot] s; s: zu den Alkalimetallen gehörendes chem. Element; Zeichen: Rb …
53Rubidium — Ru|bi|di|um das; s <zu lat. rubidus »dunkelrot« u. ↑...ium> chem. Element, Alkalimetall; Zeichen Rb …
54rubidium — ruË bɪdɪəm n. (Rb) metallic chemical element (Chemistry) …
55rubidium — [rʊ bɪdɪəm] noun the chemical element of atomic number 37, a rare soft silvery reactive metal of the alkali metal group. (Symbol: Rb) Origin C19: mod. L., from L. rubidus red (with ref. to lines in its spectrum) …
56rubidium — ru·bid·i·um …
57rubidium-81 — n. an artificial radioactive isotope that has a half life of about four hours and decays into the radioactive gas krypton 81m, emitting radiations as it does so. It provides a useful source of krypton 81m for use in ventilation perfusion scanning …
58rubidium — ru•bid•i•um [[t]ruˈbɪd i əm[/t]] n. chem. a silver white, metallic, active element resembling potassium, used in photoelectric cells and radio vacuum tubes. Symbol: Rb; at. wt.: 85.47; at. no.: 37; sp. gr.: 1.53 at 20°C • Etymology: < G (1861) …
59rubidium — /ruˈbɪdiəm/ (say rooh bideeuhm) noun a silvery white metallic, active element resembling potassium. Symbol: Rb; relative atomic mass: 85.47; atomic number: 37; density: 1.53 at 20°C. {New Latin, from Latin rubidus red (in allusion to the two red… …
60rubidium — ru|bi|di|um sb., met (et grundstof) …
