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Symbol: Br This week we see the true nature of an element wrongly accused of being boring. Please submit a new question, A: Avogadro number (NA) Standard tables give the atomic radius of strontium is in the range 192-220 pm. Mass spectrometry (MS) is widely used in chemistry, forensics, medicine, environmental science, and many other fields to analyze and help identify the substances in a sample of material. Have feedback to give about this text? The mole concept can b. Element: Boron Symbol: B Atomic Mass: 10.811 # of Atoms: 1 Mass Percent: 100.000%. Video \(\PageIndex{5}\): A preview of some of the uses we will have for moles in upcoming units. { "2.02:_Early_Ideas_about_the_Building_Blocks_of_Matter" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "2.03:_Modern_Atomic_Theory_and_the_Laws_That_Led_to_It" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "2.04:_The_Discovery_of_the_Electron" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "2.05:_The_Structure_of_The_Atom" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "2.06:_Protons_Neutrons_and_Electrons_in_Atoms" : "property get [Map MindTouch.Deki.Logic.ExtensionProcessorQueryProvider+<>c__DisplayClass228_0.b__1]()", "2.07:_Finding_Patterns_-_The_Periodic_Law_and_the_Periodic_Table" : "property get [Map 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\newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\), Example \(\PageIndex{1}\): Mass ratio from atomic weights, Example \(\PageIndex{3}\): Relative masses from atomic weights, Example \(\PageIndex{4}\): number of moles in N particles, Example \(\PageIndex{5}\): Boron content of borax, Example \(\PageIndex{6}\): Magnesium in chlorophyll, Example \(\PageIndex{7}\): Molar Volume of a Liquid, Example \(\PageIndex{8}\): Radius of a Strontium Atom, 2.8: The Average Mass of an Elements Atoms, Example \(\PageIndex{2}\): Mass of a single atom.