Element Krypton - Kr

Comprehensive data ~ above the chemical element Krypton is detailed on this page; consisting of scores that properties, facet names in countless languages, most well-known nuclides the Krypton. Usual chemical compounds are also noted for numerous elements. In addition technical state are attached to their definitions and also the menu includes links to related write-ups that room a an excellent aid in one"s studies.

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Krypton Menu

Krypton web page OneOverview that KryptonKrypton"s surname in other LanguagesAtomic framework of KryptonChemical properties of KryptonPhysical properties of KryptonRegulatory / HealthWho/When/Where/HowKrypton web page TwoNuclides / IsotopesPotential parental Nuclides

Overview the Krypton

Atomic Number: 36Group: 18Period: 4Series: Noble Gasses

Krypton"s name in various other Languages

Latin: KryptonCzech: KryptonCroatian: KriptonFrench: KryptonGerman: Krypton - rItalian: CriptoNorwegian: KryptonPortuguese: CriptônioRussian: КриптонSpanish: CriptónSwedish: KryptonAtomic framework of KryptonAtomic Radius: 1.03ÅAtomic Volume: 38.9cm3/molCovalent Radius: 1.12ÅCross Section (Thermal ghost Capture) σa/barns: 25Crystal Structure: Cubic challenge centered
Electron Configuration:1s2 2s2p6 3s2p6d10 4s2p6Electrons per energy Level: 2,8,18,8Shell Model
Ionic Radius:
Filling Orbital: 4p6Number of electrons (with no charge): 36Number of neutrons (most common/stable nuclide): 48Number the Protons: 36Oxidation States: 0Valence Electrons: 4s2p6Electron period Model

Chemical nature of Krypton

Electrochemical Equivalent:
Electron work Function:Electronegativity: N/A (Pauling); 2.94 (Allrod Rochow)Heat that Fusion: 1.638kJ/molIncompatibilities:Ionization PotentialFirst: 13.999Second: 24.359Third: 36.95Valence Electron Potential (-eV):

Physical nature of Krypton

Atomic mass Average: 83.8Boiling Point: 119.95K -153.2°C -243.8°FCoefficient the lineal heat expansion/K-1: N/AConductivityElectrical: Thermal: 0.0000949 W/cmKDensity: 3.75g/L
273K & 1atmDescription: Colorless, odorless, tasteless noble gas.Enthalpy of Fusion: 1.64 kJ/moleEnthalpy the Vaporization: 9.03 kJ/moleFlammablity Class:Freezing Point: see melt pointHeat that Vaporization: 9.029kJ/molMelting Point: 115.93K -157.22°C -251°FMolar Volume: 32.2 cm3/moleOptical Refractive Index: 1.000427Physical State (at 20°C & 1atm): GasSpecific Heat: 0.248J/gK

Regulatory / Health

CAS Number7439-90-9RTECS: OC6772500OSHA permit Exposure border (PEL)No limits collection by OSHAOSHA PEL Vacated 1989No limits collection by OSHANIOSH recommended Exposure border (REL)No limits set by NIOSH Levels In Humans:Note: this data represents naturally occuring level of aspects in the typical human, the DOES NOT represent recommended daily allowances.Blood/mg dm-3: traceBone/p.p.m: nilLiver/p.p.m: nilMuscle/p.p.m: nilDaily dietary Intake: n/aTotal massive In Avg. 70kg human: n/a

Who / wherein / when / How

Discoverer: teacher William Ramsey, M.W. TraversDiscovery Location: London EnglandDiscovery Year: 1898Name Origin:Greek: kryptos (hidden).Abundance that Krypton:Earth"s Crust/p.p.m.: 0.00001Seawater/p.p.m.: 0.00008Atmosphere/p.p.m.: 1.14Sun (Relative come H=1E12): N/ASources of Krypton:Forms 1 millionth the the atmosphere. Obtained from manufacturing of liquid air. Approximately 8 tons of krypton is produced each year people wide.Uses the Krypton:Used in fluorescent bulbs, flashbulbs, UV lasers and as a wavelength standard.Additional Notes:Although krypton is a unauthorized gas, it might asphyxiate if it excluded oxygen native the lungs.

Krypton Menu

Krypton web page OneOverview of KryptonKrypton"s surname in various other LanguagesAtomic structure of KryptonChemical properties of KryptonPhysical nature of KryptonRegulatory / HealthWho/When/Where/HowKrypton web page TwoNuclides / IsotopesPotential parent Nuclides


A list of recommendation sources used to translate into the data listed on our routine table of elements can be uncovered on the main periodic table page.

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