If you have any questions, please contact this email[email protected]

MORE PRODUCTS

  • Rubidium - Wikipedia

    OverviewCharacteristicsProductionHistoryApplicationsPrecautions and biological effectsFurther readingExternal links

    Rubidium is a chemical element with the symbol Rb and atomic number 37. Rubidium is a very soft, silvery-white metal in the alkali metal group. Rubidium metal shares similarities to potassium metal and caesium metal in physical appearance, softness and conductivity. Rubidium cannot be stored under atmospheric oxygen, as a highly exothermic reaction will ensue, sometimes even resulting in the metal catching fire. Rubidium is the first alkali metal in the group to have a density higher than

  • 选择时,新内容将添加到焦点当前区域上方

    Rubidium is a chemical element with the symbol Rb and atomic number 37. Rubidium is a very soft, silvery-white metal in the alkali metal group. Rubidium metal shares similarities to potassium metal and caesium metal in physical appearance, softness and conductivity. Rubidium cannot be stored under atmospheric oxygen, as a highly exothermic reaction will ensue, sometimes even resulting in the metal catching fire. Rubidium is the first alkali metal in the group to have a density higher than water, so it sinks, unlike the m

    Wikipedia CC-BY-SA 许可下的文字
  • Rubidium containing thin films by atomic layer deposition ...

    The application range for atomic layer deposition (ALD) has now been extended to include the deposition of rubidium-containing films, enabling the deposition of new and exploratory types of compounds by ALD. The properties of rubidium t-butoxide as an ALD precursor are

  • Rubidium Containing Thin Films by Atomic Layer Deposition ...

    Request PDF Rubidium Containing Thin Films by Atomic Layer Deposition The application range for atomic layer deposition (ALD) has now been extended to include deposition of rubidium-containing ...

  • Pulsed Optically Pumped Atomic Clock Design Achieves State ...

    Apr 24, 2020  The new design uses a compact optical module consisting of a distributed Bragg reflector (DBR) laser and an acousto-optic modulator in a POP vapor-cell rubidium atomic clock. Containing the physics package in a sealed vacuum chamber improved temperature control and also reduced the negative influence of the barometric effect.

  • Atomic clock - Wikipedia

    An atomic clock is a clock device that uses a hyperfine transition frequency in the microwave, or electron transition frequency in the optical or ultraviolet region of the electromagnetic spectrum of atoms as a frequency standard for its timekeeping element. Atomic clocks are the most accurate time and frequency standards known, and are used as primary standards for international time ...

  • Application: TAI, satellite navigation
  • The effects of atomic rubidium vapor on the performance of ...

    The effects of atomic rubidium vapor on the performance of optical windows in Diode Pumped Alkali Lasers (DPALs) ... 780 nm output laser beam is steered by highly reflective mirrors directly through the optical window into a gain cell containing rubidium–helium. A resonator section, with the actual DPAL gain cell is housed inside the oven ...

  • Cited by: 13
  • How would you use the mass spectrum of rubidium to ...

    Jun 24, 2017  This question is asking us to interpret the graph. This is Rubidium (maybe even the one you're looking at). The atomic mass is a sum function of relative abundances of isotopes. sum = A*M Where, M = isotopic mass A = relative abundance 85*(1-.38)+87*0.38 = 85.76 am u Not too far the actual! (85.4678)

  • How would you calculate the atomic mass of rubidium given ...Nov 16, 2015How can atomic spectra be used to identify elements ...Apr 21, 2014Isotopes - Chemistry Socratic Elements - Chemistry Socratic 查看更多结果
  • The effects of atomic rubidium vapor on the performance of ...

    The effects of atomic rubidium vapor on the performance of optical windows in Diode Pumped Alkali Lasers (DPALs) ... 780 nm output laser beam is steered by highly reflective mirrors directly through the optical window into a gain cell containing rubidium–helium. A resonator section, with the actual DPAL gain cell is housed inside the oven ...

  • How would you use the mass spectrum of rubidium to ...

    Jun 25, 2017  This question is asking us to interpret the graph. This is Rubidium (maybe even the one you're looking at). The atomic mass is a sum function of relative abundances of isotopes. sum = A*M Where, M = isotopic mass A = relative abundance 85*(1-.38)+87*0.38 = 85.76 am u Not too far the actual! (85.4678)

  • USA Test Prep Flashcards Quizlet

    Rubidium is an alkaline earth metal and the first element of fifth period. The outermost electron is added to the 5s-orbital. So the electronic configuration of Rb, atomic number 37, is 1s22s22p63s23p64s23d104p65s1

  • Facts About Rubidium Live Science

    Sep 10, 2016  Scientists treat rubidium as a toxic element, according to Encyclopedia, although no known health effects of rubidium are known. Just the facts Atomic

  • Rubidium: The mineralogy of Rubidium - Mindat.org

    Most widespread minerals containing Rubidium; This list of minerals containing Rubidium is built from the mindat.org locality database. This is based on the number of localities entered for mineral species and is therefore slanted towards minerals interesting to collectors with less coverage of common rock-forming-minerals so it does not give an undistorted distribution of Rubidium mineral ...

  • Rubidium - Wikipedia

    Rubidium is a chemical element with the symbol Rb and atomic number 37. Rubidium is a very soft, silvery-white metal in the alkali metal group. Rubidium metal shares similarities to potassium metal and caesium metal in physical appearance, softness and conductivity. Rubidium cannot be stored under atmospheric oxygen, as a highly exothermic reaction will ensue, sometimes even resulting in the ...

  • 【3 Steps】How Many Neutrons Does Rubidium(Rb)

    May 25, 2019  The atomic number of rubidium (Rb) is the number of protons in rubidium (Rb) 's nucleus. The atomic mass of rubidium (Rb) is the average number of protons plus neutrons of all the isotopes of rubidium (Rb) . The masss number of rubidium (Rb) is the number of protons plus neutrons of a specific isotope of rubidium (Rb) .

  • Rubidium - Atomic Number - Atomic Mass - Nuclear Power

    Atomic Number of Rubidium. Rubidium is a chemical element with atomic number 37 which means there are 37 protons and 37 electrons in the atomic structure. The chemical symbol for Rubidium is Rb.. Atomic Mass of Rubidium. Atomic mass of Rubidium is 85.4678 u. Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring

  • Rubidium Rb - PubChem

    RUBIDIUM METAL is a strong reducing agent. Burns spontaneously in dry oxygen [Mellor 2:468 1946-47]. Readily catches fire in air when molten or with a sulfur vapor [Mellor 2: 469 1946-47].

  • What is the atomic radius of rubidium - Answers

    The empirical atomic radius of rubidium is 235 pm. The empirical atomic radius of caesium is 260 pm. The empirical atomic radius of francium is supposed to be approx. 260 pm.

  • Rubidium - Periodic Table of Elements: Los Alamos National ...

    Twenty four isotopes of rubidium are known. Naturally occurring rubidium is made of two isotopes, 85 Rb and 87 Rb. Rubidium-87 is present to the extent of 27.85% in natural rubidium and is a beta emitter with a half-life of 4.9 x 10 10 years. Ordinary rubidium is sufficiently radioactive to expose a photographic film in about 30 to 60 days.

  • How would you calculate the atomic mass of rubidium given ...

    Nov 17, 2015  The average atomic mass of an element is determined by taking the weighted average of the atomic masses of its naturally occurring isotopes.. Now, weighted average simply means that each isotope contributes to the average atomic mass of the element proportionally to its percent abundance. #color(blue)("avg. atomic mass" = sum_i ("isotope"_i xx "abundance"_i))#

  • Alkali Vapor Magnetometry Pines Lab

    Alkali-metal atomic magnet ometers are among the most sensitive technologies for detecting and characterizing magnetic fields, making them ideal for many applications of NMR. An atomic magnetometer consists of a cell containing a vapor of alkali-metal atoms (such as rubidium or cesium), which are optically pumped using a resonant laser beam, yielding polarization on the order of

  • New POP atomic clock design achieves state-of-the-art ...

    Apr 21, 2020  The new design uses a compact optical module consisting of a distributed Bragg reflector (DBR) laser and an acousto-optic modulator in a POP vapor-cell rubidium atomic clock. Containing

  • Rubidium - Periodic Table of Elements: Los Alamos National ...

    Twenty four isotopes of rubidium are known. Naturally occurring rubidium is made of two isotopes, 85 Rb and 87 Rb. Rubidium-87 is present to the extent of 27.85% in natural rubidium and is a beta emitter with a half-life of 4.9 x 10 10 years. Ordinary rubidium is sufficiently radioactive to expose a photographic film in about 30 to 60 days.

  • How would you calculate the atomic mass of rubidium given ...

    Nov 17, 2015  The average atomic mass of an element is determined by taking the weighted average of the atomic masses of its naturally occurring isotopes.. Now, weighted average simply means that each isotope contributes to the average atomic mass of the element proportionally to its percent abundance. #color(blue)("avg. atomic mass" = sum_i ("isotope"_i xx "abundance"_i))#

  • Alkali Vapor Magnetometry Pines Lab

    Alkali-metal atomic magnet ometers are among the most sensitive technologies for detecting and characterizing magnetic fields, making them ideal for many applications of NMR. An atomic magnetometer consists of a cell containing a vapor of alkali-metal atoms (such as rubidium or cesium), which are optically pumped using a resonant laser beam, yielding polarization on the order of

  • New POP atomic clock design achieves state-of-the-art ...

    Apr 21, 2020  The new design uses a compact optical module consisting of a distributed Bragg reflector (DBR) laser and an acousto-optic modulator in a POP vapor-cell rubidium atomic clock. Containing

  • Atomic Mass and Nuclear Binding Energy for Rb-74 (Rubidium)

    Download Citation Atomic Mass and Nuclear Binding Energy for Rb-74 (Rubidium) This document is part of the Supplement containing the complete sets of data of Subvolume A ‘Nuclei with Z = 1 ...

  • Sample Preparation Guides - Inorganic Ventures

    The Metals. The alkali metals, lithium (Li), sodium (Na), potassium (K), rubidium (Rb) and cesium (Cs), are all extremely light in weight, compressible, and relatively, very soft.Lithium is the hardest of the alkali metals with a hardness of 0.6 on Mohs' scale. Freshly cut surfaces of the alkali metals show a silvery white luster, which tarnishes quickly and becomes dull in air.

  • Rubidium chemical element Britannica

    Rubidium (Rb), chemical element of Group 1 (Ia) in the periodic table, the alkali metal group. Rubidium is the second most reactive metal and is very soft, with a silvery-white lustre. Rubidium was discovered (1861) spectroscopically by German scientists Robert Bunsen and Gustav Kirchhoff and named

  • A compound containing only oxygen and rubidium has 0.187 g ...

    Jan 21, 2014  A compound containing only oxygen and rubidium has 0.187 g of O per 1.00 g of Rb. The relative atomic masses are 16.0 for O and 85.5 for Rb What is a O-to-Rb mass ratio for this oxide of rubidium? Please help me figure out this problem! Thanks!

  • Locate the row containing lithium (Li), sodium (Na ...

    Locate the row containing lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs). Look up these elements in the periodic table e, and click each element to reveal its properties. Explain why Mendeleev might have grouped these elements together.

  • Chemical element: Rubidium (Rb) - Convert Units

    Find information on Rubidium including chemical element properties like atomic weight and a list of compounds that contain Rubidium.

  • Rubidium Article about rubidium by The Free Dictionary

    Rubidium has an atomic radius of 2.48 Å; the ionic radius of Rb + is 1.49 Å. The element has a density of 1.525 g/cm 3 (0°C), a melting point of 38.9°C, a boiling point of 703°C, a specific heat of 335.2 joules/kg/°K (0.08 calorie/g/°C) and a coefficient of linear thermal expansion of 9.0 × 10 -5 °C

  • Rubidium Rb (Element) - PubChem

    Naturally occurring rubidium is made of two isotopes, 85 Rb and 87 Rb. Rubidium-87 is present to the extent of 27.85% in natural rubidium and is a beta emitter with a half-life of 4.9 x 10 10 years. Ordinary rubidium is sufficiently radioactive to expose a photographic film in about 30 to 60 days. Rubidium forms four oxides: Rb 2 O, Rb 2 O 2 ...

  • A Subfemtotesla Atomic Magnetometer Based on Hybrid ...

    In addition, it allows optical pumping in the absence of quenching gas. We conduct experiments with a hybrid optically pumped atomic magnetometer using a cell containing potassium and rubidium. By adjusting the density ratio of alkali metal and the pumping laser conditions, we measured the magnetic field sensitivity better than 0.7 fT/sqrt(Hz).

  • Atomic Weight of Rubidium Commission on Isotopic ...

    Rubidium A r (Rb) = 85.4678(3) since 1969 The name derives from the Latin rubidus for "deepest red" because of the two deep red lines in its spectra. Rubidium was discovered in the mineral lepidolite by the German chemist Robert Wilhelm Bunsen and the German physicist Gustav-Robert Kirchoff in 1861. Bunsen isolated rubidium in 1863.

  • Rubidium Article about rubidium by The Free Dictionary

    Rubidium has an atomic radius of 2.48 Å; the ionic radius of Rb + is 1.49 Å. The element has a density of 1.525 g/cm 3 (0°C), a melting point of 38.9°C, a boiling point of 703°C, a specific heat of 335.2 joules/kg/°K (0.08 calorie/g/°C) and a coefficient of linear thermal expansion of 9.0 × 10 -5 °C

  • Rubidium Rb (Element) - PubChem

    Naturally occurring rubidium is made of two isotopes, 85 Rb and 87 Rb. Rubidium-87 is present to the extent of 27.85% in natural rubidium and is a beta emitter with a half-life of 4.9 x 10 10 years. Ordinary rubidium is sufficiently radioactive to expose a photographic film in about 30 to 60 days. Rubidium forms four oxides: Rb 2 O, Rb 2 O 2 ...

  • A Subfemtotesla Atomic Magnetometer Based on Hybrid ...

    In addition, it allows optical pumping in the absence of quenching gas. We conduct experiments with a hybrid optically pumped atomic magnetometer using a cell containing potassium and rubidium. By adjusting the density ratio of alkali metal and the pumping laser conditions, we measured the magnetic field sensitivity better than 0.7 fT/sqrt(Hz).

  • Atomic Weight of Rubidium Commission on Isotopic ...

    Rubidium A r (Rb) = 85.4678(3) since 1969 The name derives from the Latin rubidus for "deepest red" because of the two deep red lines in its spectra. Rubidium was discovered in the mineral lepidolite by the German chemist Robert Wilhelm Bunsen and the German physicist Gustav-Robert Kirchoff in 1861. Bunsen isolated rubidium in 1863.

  • chem extra credit ch Flashcards Quizlet

    One of several trends found in the Periodic Table relates to the atomic radius (the size of an atom). The radius is calculated by measuring the distance between the outer edge of the electron cloud and the nucleus. The outer edge is the last set of orbitals containing the valence electrons. Which one of the following has the smallest atomic radius?

  • Atomic Mass and Nuclear Binding Energy for Rb-65 (Rubidium ...

    This document is part of the Supplement containing the complete sets of data of Subvolume A `Nuclei with Z = 1 - 54' of Volume 22 `Nuclear Binding Energies and Atomic Masses' of Landolt-Börnstein - Group I `Elementary Particles, Nuclei and Atoms'. It provides atomic mass, mass excess, nuclear binding energy, nucleon separation energies, Q-values, and nucleon residual interaction parameters ...

  • HYPERFINE SPLITTING OF RUBIDIUM-87 (Journal Article ...

    The transmission of circularly polarized rubidium resonance radiation through a flask containing rubidium, atomic hydrogen, or atomic tritium, and a buffer gas was monitored as a function of the frequency of an applied radio-frequency field. Measurements were made for hydrogen in helium, neon, molecular hydrogen, and argon buffer gases and for ...

  • Four-wave-mixing stopped light in hot atomic rubidium

    Four-wave-mixing stopped light in hot atomic rubidium vapour Ryan M. Camacho1,2*, Praveen K. Vudyasetu1 andJohnC.Howell1 Digital signal processing, holography, and quantum and classical information processing rely heavily upon recording the amplitude and phase of coherent optical signals. One method for achieving coherent information storage ...

  • WebElements Periodic Table » Rubidium » compounds information

    This section lists some binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and some other compounds of rubidium. For each compound, a formal oxidation number for rubidium is given, but the usefulness of this number is limited for p

  • Rubidium - EniG. Periodic Table of the Elements

    Rubidium was discovered by Robert Wilhelm Bunsen and Gustav Robert Kirchhoff (DE) in 1861. The origin of the name comes from the Latin word rubidius meaning dark red or deepest red.It is a soft, silvery-white, highly reactive metal that ignites in air and reacts violently with water or oxidants.

  • 10 Uses of Rubidium in Everyday Life - AZ Chemistry

    May 09, 2018  Saline water samples have also been analyzed and proven to contain rubidium of up to 6 parts per million. Rubidium is also considered the 16th most common element found in the Earth’s crust. Rubidium is in pollucite, leucite and zinnwaldite, which contain about 1% and in the oxide form.

  • Atomic Structure - Department of Chemistry

    How many p electrons are there in an atom of rubidium? (a) 12 (b) 18 (c) 24 (d) 9 (e) 6 20. A neutral atom of an element has 2 electrons in the first energy level, 8 in the second energy level and 8 in the third energy level. This information does not necessarily tell us: (a) the atomic number of the element.

  • Vapor Reference Cells - Thorlabs

    Borosilicate Glass Reference Cells Cesium (Cs) Potassium (K) Sodium (Na) Rubidium (Rb) Quartz Glass Reference Cells Cesium (Cs) Iodine (I) Rubidium (Rb) Enhanced Rubidium 87 (87 Rb) Glass Cell Heaters Available; Reference cells contain vapors of specific atomic elements or molecular compounds, each of which has a well-defined absorption spectrum.

  • Rubidium-87 decays by β -particle production to strontium ...

    Interpretation: The half life of Rubidium- 87 is given. A rock containing 109.7 μg of 87 Rb and 3.1 μg of 87 Sr is given. Assuming no 87 Sr was originally present; the age of the rock is to be calculated. Concept introduction: A process through which an unstable nuclide loses its energy due to excess of protons or neutrons is known as radioactive decay.

  • * *

    The materials of processing: *

    • Granite
    • Limestone
    • Basalt
    • Pebble
    • Gravel
    • Gypsum
    • Marble
    • Barite
    • Quartz
    • Dolomite
    • Gold Ore
    • Copper ore
    * *

    About US

    we in the more than 30 years of its development process, has formed a unique and content-rich corporate culture. The building of enterprise culture, particularly the aggregation of cohesion and solidarity, is built as power source for the sustainable development of enterprise.

    Copyright © 2004-2019 We All rights reservedsitemap