Detail Element: [24] - [Cr] Chromium

element.nameElectron Panel Modal created by GPPT Lab24Atom NumberCrSymbolChromiumNameTransition metalCategory6.0GroupSolidPhaseDiscovered ByLouis Nicolas Vauquelin1797Year51.996uAtomic Mass23.350kJ/molMolar Heat189.00Atomic Radius6.0Groupg/cm37.190Density4.0Period2944.000°KBoil2180.000°KMelt
Electronselement.nameElectron shell created by GPPT Lab contact@gppt.tnCr24
Protons and Neutronselement.nameElectron shell created by GPPT Lab contact@gppt.tn24 neutron24 Proton
Electrons Arrangement6s6p6d7s7p5s5p5d5f4s4p4d4f3s3p3d2s2p1s7d7g7f7h7i6g6f6h5gLevel 1Level 2Level 3Level 4Level 5Level 6Level 7
ElectronProtonNeutronIsotopes24242424%24{n}24%{{n}Copyright © 2023, All Right Reserved Tidjma.tn
Big Bang Model10–43Température (°C)بلازما الكواركات والغلوناتquarks , electrons and gluons soupSoupe de quarks, électrons et gluonsتكوين ذرات الهيدروجين والهيليومHydrogen & Helium, Atomes FormationFormation des Atomes d'Hydrogène & Hélium010–3210–610131081030-200-2701024101510910271061012101810211028131 second3 minutes300 000300 000 Years1 Billion Years1By5By10By13ByPresent104ظهور الإنسانAppearance of manApparition de l'homme9 Byتشكيل النظام الشمسيFormation of the solar systemFormation du système solaire13.6 Age o Universبداية تشكل النجوم والمجراتBeginning of formation of stars and galaxiesDébut de formation des Etoiles et Galaxiesتشكيل البروتون النوترونProton Neutron FormationFormation des Protons et Neutronsظهور الفوتوناتPhotons ApparitionApparition des Photonsانقراض الديناصوراتExtinction of the DinosaursExtinction des DinosauresCopyright © 2023, All Right Reserved Tidjma.tnCopyright © 2023, All Right Reserved Tidjma.tn
nm400450500550600650700
>ROYGBV38045038057062075059010241022102010181016101410121010108106104102100ν (Hz)10810610410210010-210-410-610-810-1010-1210-1410-16Visible SpectrumIncreasing Wavelength (λ)λ (m)Increasing Frequency (ν)Copyright © 2023, All Right Reserved Tidjma.tnCopyright © 2023, All Right Reserved Tidjma.tnγ raysX raysUVIRMicrowaveFMAMEHFLong Radio WavesSHFUHFVHFHFMFLF
Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point.
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