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Robert Wilhelm Eberhard Bunsen (German: [ˈʁoːbɛʁt ˈbʊnzn̩]; 30 March 1811 [a] – 16 August 1899) was a German chemist. He investigated emission spectra of heated elements, and discovered caesium (in 1860) and rubidium (in 1861) with the physicist Gustav Kirchhoff. [11] The Bunsen–Kirchhoff Award for spectroscopy is named after Bunsen ...
Rubidium chloride (RbCl) is probably the most used rubidium compound: among several other chlorides, it is used to induce living cells to take up DNA; it is also used as a biomarker, because in nature, it is found only in small quantities in living organisms and when present, replaces potassium.
A prefix meaning "two", e.g. bisulcate, having two sulci or grooves. biennial A plant which completes its life cycle (i.e. germinates, reproduces, and dies) within two years or growing seasons. Biennial plants usually form a basal rosette of leaves in the first year and then flower and fruit in the second year. bifid
It is the major source of the alkali metal rubidium. [13] In 1861, Robert Bunsen and Gustav Kirchhoff extracted 150 kg (330 lb) of lepidolite to yield a few grams of rubidium salts for analysis, and therefore discovered the new element rubidium. [14] [15] It occurs in granite pegmatites, in some high-temperature quartz veins, greisens and granites.
Gulmohar ("Fire of the Forest",Flamboyant, Royal Peacock flower, Royal Gold Mohur or Fire tree, Mayaram மயரம் in Tamil,Neruppukkondrai Maram in Tamil, Shima Sankesula in Telugu, Krishnachura in Bengali and Gulmohr-गुलमोहर in Marathi) -- Delonix (or Poinciana) regia, commonly called "turrai " in Telugu
They consist of several to many flowers, found at both the ends of branches and in the leaf axils. The flowers appear from August to September, followed by small (4–6 mm diameter) red to black berries from October to November. [2] The roots can be over 1 m long, up to 12 mm thick. It prefers loamy soils with a constant level of moisture.
Agati; Algaroba; Arni; Ashok; Asian Bushbeech; Badminton Ball Tree; Batino; Blackjack Oak; Bothi; Brazilian Pepper; Buddha Coconut; Cashew; Caucasian Maple; Chaste Tree
Dirubidium is produced when rubidium vapour is chilled. The enthalpy of formation (Δ f H °) in the gas phase is 113.29 kJ/mol. [2] In practice, an oven heated to 600 to 800K with a nozzle can squirt out vapour that condenses into dimers. [3] The proportion of Rb 2 in rubidium