Detail Element: [67] - [Ho] Holmium

element.nameElectron Panel Modal created by GPPT Lab67Atom NumberHoSymbolHolmiumNameLanthanideCategory3.0GroupSolidPhaseDiscovered ByMarc Delafontaine1878Year164.930uAtomic Mass27.150kJ/molMolar Heat216.00Atomic Radius3.0Groupg/cm38.790Density6.0Period2873.000°KBoil1734.000°KMelt
Electrons>element.nameElectron shell created by GPPT Lab contact@gppt.tnHo67
Protons and Neutronselement.nameElectron shell created by GPPT Lab contact@gppt.tn67 neutron67 Proton
Electrons Arrangement6s6p6d7s7p5s5p5d5f4s4p4d4f3s3p3d2s2p1s7d7g7f7h7i6g6f6h5gLevel 1Level 2Level 3Level 4Level 5Level 6Level 7
ElectronProtonNeutronIsotopes67676767%67{n}67%{{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
Holmium is a chemical element with symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a rare earth element. Holmium was discovered by Swedish chemist Per Theodor Cleve.
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