Sm

Samarium

Izinto 62 · 150.36 u

Lanthanide f- iblock Ixesha 6 I-Solid kwi-RT I-Wikipedia →

I-Samarium isetyenziswa kumatye anamandla kunye nonyango lwesifo somhlaza.

Iimpawu Zobuchopho

Ii-atom150.36 u
Uxinano7.52 g/cm³
Incopho yokubila:1345.0 K
Incopho yokubila:2067.0 K
UkubonakalaI-silvery-white metallic
I-State at Room TempI-Solid

Iimpawu zekhemikhali

Electronegativity1.17 (I-Polygon)
I-Ionization Energy544.5 kJ/mol
Electronegativity:15.6 kJ/mol
Iindawo zokuthambisa+2, +3

Iimpahla zephetshana elichazayo:

Uqwalaselo lwe Electron[Xe] 4f6 6s2
Atomic radius:180.0 pm
I-Covalent Radius198.0 pm
I-Van der Waals Radius229.0 pm

Ukufumana kwakhona

Ifunyenwe NguLecoq de Boisbaudran
Unyaka Wophando1879
IndawoParis, France
Igama ElilandelayoIgama eligqithisiweyo

I-About Samarium

I-Samarium yintsimbi eqinileyo emhlophe ekhawulezayo e-oxidizes emanzini. I-Samarium-i-cobalt magnets yayiyeyona magnets eqhelekileyo yehlabathi kwaye ihlala ibalulekile kwinkqubo yobushushu obuphezulu.

Iinkqubo

Amasuntswana e-samarium-cobalt, unyango lwesifo somhlaza (samarium-153), izikhonkwane zolawulo lwe-nuclear reactor, kunye nezinto ezikhuthazayo.

Inyathelo 1:

Iimagnethi ze-Samarium-i-Cobalt zisebenza ukuya kuthi ga kumaqondo angama-700 C, zidlula kakhulu iimagnethi ze-neodymium, zenza ukuba zibalulekile kwiinjini zejet.

I-Isotopes

Inani le-Mass Uninzi Ixesha eliphakathi Iqinile
147 0.1499% 1.06e11 years Akukho nanye
149 0.1382% - Ewe
150 0.0738% - Ewe
152 0.2675% - Ewe

Uqwalaselo lwe Electron

[Xe] 4f6 6s2

Uthelekiso

Uthelekiso nezinye izinto

Vula isixhobo sokuthelekiswa
← Promethium Buyela kwitheyibhile Europium →