La

Lanthanum

Qaybta 57 · 138.91 u

Lanthanide f-block Waqtiga 6 Cidhiidhi at RT Wikipedia →

Lanthanum waa magacaaga ee silsilada lanthanide, loo isticmaalo in lenses camera iyo catalysts.

Eeg astaamaha

Atomic mass138.91 u
Cidhiidhi6.145 g/cm³
Natiijooyinka1193.0 K
Natiijooyinka3737.0 K
MuuqaalkaMadow oo fidsan oo bir ah
Xaaladda heerkulka qolkaCidhiidhi

Eegista

Electronegativity1.1 (Pauling)
1st Ionization538.1 kJ/mol
Istaraatiijiyad53.0 kJ/mol
Nidaamka+2, +3

_Cusub:

Nidaamka[Xe] 5d1 6s2
Awooda187.0 pm
Xaraf207.0 pm
Van der Waals240.0 pm

Dib u eegista

La OgaadayCarl Gustaf Mosander
Sannadka la helay1839
_MeelStockholm, Sweden
MagacaabistaGiriigga 'lanthanein' macnaheedu waa in ay been qarsoon

_Warbixinta Lanthanum

Lanthanum waa bir adag, ductile, silvery-caddaan ah oo si deg deg ah u tarnishes. Waxaa laga helaa dhulka qadiimiga ah macdanta sida monazite iyo bastnaesite. Waxay leedahay doorka aan biyo-jiidashada.

Barnaamijyada

Kaamirooyinka iyo teleskoopyada, burburinta catalytic ee shidaalka, elektaroonigga batari, iyo fiinta iftiinka.

Xaqiiqo xiiso leh

Lanthanum waxaa 'ku qarsoon' cerium oxide gudaha 36 sano ka hor kala soocida - ku habboon tan iyo markii magaceeda macnaheedu yahay 'in ay ku qarsoon yihiin'.

Isotoobyo

Tirada Tirada Half-Life Xasiloon
138 0.0009% - Haa
139 0.9991% - Haa

Nidaamka

[Xe] 5d1 6s2

La barbardhigo

La barbardhigo qaybaha kale

Fur Qalabka La Xiriirinta
← Barium Ku noqo Jadwalka Cerium →