Rubidium (37Rb) has 36 isotopes, with naturally occurring rubidium being composed of just two isotopes; 85Rb (72.2%) and the radioactive 87Rb (27.8%)....

Rubidium is a chemical element; it has symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkali metal group, similar to potassium...

Rubidium-82 (82Rb) is a radioactive isotope of rubidium. 82Rb is widely used in myocardial perfusion imaging. This isotope undergoes rapid uptake by myocardiocytes...

Sublimation enthalpy (kJ/mol) Li lithium 159 Na sodium 107 K potassium 89 Rb rubidium 81 Cs caesium 76 Mg magnesium 148 Ca calcium 178 Sr strontium 164 Ba barium...

consist of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). Together with hydrogen they constitute...

temperature. Caesium has physical and chemical properties similar to those of rubidium and potassium. It is pyrophoric and reacts with water even at −116 °C (−177 °F)...

Eric Cornell and Carl Wieman of the University of Colorado Boulder using rubidium atoms; later that year, Wolfgang Ketterle of MIT produced a BEC using sodium...

of rubidium found in rubidium vapour. Dirubidium has two active valence electrons. It is studied both in theory and with experiment. The rubidium trimer...

discovered the phenomena of atomic recoil and nuclear isomerism, and pioneered rubidium–strontium dating. In 1938, Hahn, Meitner and Fritz Strassmann discovered...

structure because the two CO2 planes are staggered. Two structural forms of rubidium oxalate Rb2C2O4 have been identified by single-crystal X-ray diffraction:...

produced by fission. Rubidium-87 has such a long half life as to be essentially stable (longer than the age of the Earth). Rubidium-86 quickly decays to...

and rocks have values ranging from about 0.7 to greater than 4.0 (see rubidium–strontium dating). Because strontium has an electron configuration similar...

frequency of the rubidium-87 atom, 6 834 682 610.904 312 6 Hz, in terms of the caesium standard frequency. Atomic clocks based on rubidium standards are...

leading to the discovery of two alkali metals, caesium (sky-blue) and rubidium (dark red). Today, this low-cost method is used in secondary education...

reactive than caesium and francium and closer in behavior to potassium or rubidium, and while it should show the characteristic +1 oxidation state of the...

by Robert Bunsen and Gustav Kirchhoff and the discovery of caesium and rubidium in the years 1859 to 1860, flame spectroscopy became an approved method...

conditions is the halogen bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature. Mercury occurs in deposits throughout...

Trautmann, N. (24 May 2010). "Determination of the first ionization potential of technetium". Physical Review A. 81: 052513. doi:10.1103/PhysRevA.81.052513....

Apker, L. (1953-02-01). "Photoemission from Cesium and Rubidium Tellurides". JOSA. 43 (2): 81–83. Bibcode:1953JOSA...43...81T. doi:10.1364/JOSA.43.000081...

p-block 83.798 0.003749 115.79 119.93 0.248 3.00 1×10−4 primordial gas 37 Rb Rubidium Latin rubidus 'deep red' 1 5 s-block 85.468 1.532 312.46 961 0.363 0.82...

representations as spherical polyhedra, or spherical tilings. The atomic number of rubidium The normal human body temperature in degrees Celsius NGC 2169 is known...

can be transported a reasonable distance before use, or to rubidium-82 (used as rubidium-82 chloride) with a half-life of 1.27 minutes, which is created...

differences in their charge density. Between the cations of potassium, rubidium, and cesium changes in affinities are less notable, as their charge density...

Bromine-81 Krypton-78 (2E) – long-lived primordial radionuclide Krypton-80 Krypton-82 Krypton-83 Krypton-84 Krypton-86 (2B) Rubidium-85 Rubidium-87 (B)...

the most common alkali metal used for this process, rubidium, will be used as an example. Rubidium has an odd number of electrons, with only one in the...

age for the quartz diorite at Cerro Paine is 12 ± 2 million years by the rubidium-strontium method and 13 ± 1 million years by the potassium-argon method...

are a major source of elements in the interstellar medium from oxygen to rubidium. The expanding shock waves of supernovae can trigger the formation of new...

the same regular ionic lattice. The univalent cation can be potassium, rubidium, caesium, ammonium (NH4), deuterated ammonium (ND4) or thallium. Sodium...

RbC5H7O2 rubidium acetylacetonate 66169–93–5 RbCl rubidium chloride 7791–11–9 RbF rubidium fluoride 13446–74–7 RbH rubidium hydride 13446–75–8 RbI rubidium iodide...

this by cooling a dilute vapor consisting of approximately two thousand rubidium-87 atoms to below 170 nK (one nK or nanokelvin is a billionth (10−9) of...