La

Lanthanum

Izinto 57 · 138.91 u

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

I-Lanthanum yigama elifanayo le-lanthanide series, esetyenziswa kwiilensi zekhamera kunye nee-catalysts.

Iimpawu Zobuchopho

Ii-atom138.91 u
Uxinano6.145 g/cm³
Incopho yokubila:1193.0 K
Incopho yokubila:3737.0 K
UkubonakalaI-silvery-white metallic
I-State at Room TempI-Solid

Iimpawu zekhemikhali

Electronegativity1.1 (I-Polygon)
I-Ionization Energy538.1 kJ/mol
Electronegativity:53.0 kJ/mol
Iindawo zokuthambisa+2, +3

Iimpahla zephetshana elichazayo:

Uqwalaselo lwe Electron[Xe] 5d1 6s2
Atomic radius:187.0 pm
I-Covalent Radius207.0 pm
I-Van der Waals Radius240.0 pm

Ukufumana kwakhona

Ifunyenwe NguCarl Gustaf Mosander
Unyaka Wophando1839
IndawoStockholm, Sweden
Igama ElilandelayoIsiGrike 'lanthanein' kuthetha ukuba ufundeka

I-About Lanthanum

I-Lanthanum yintsimbi ethambileyo, eqinileyo, emhlophe emhlophe emnyama emnyama ngokukhawuleza. Ifumaneka kwizinto eziphilayo ezincinci zehlabathi ezinjengemonazite ne bastnaesite. Ayinokuba nemisebenzi yokuphila.

Iinkqubo

Ikhamera kunye nelensi yeteleskopu, ukukrakra okukhuthazayo kwipetroli, iibhetri ze-electrode, kunye ne-flints ekhanyayo.

Inyathelo 1:

I-lanthanium yayifihlelelwe ngaphakathi kwe-cerium oxide iminyaka engama-36 phambi kokuba ihlukaniswe- ilungele kuba igama layo lithetha ukuba lifihlelelwe.

I-Isotopes

Inani le-Mass Uninzi Ixesha eliphakathi Iqinile
138 0.0009% - Ewe
139 0.9991% - Ewe

Uqwalaselo lwe Electron

[Xe] 5d1 6s2

Uthelekiso

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