Sm

Samarium

Qaybta 62 · 150.36 u

Lanthanide f-block Waqtiga 6 Cidhiidhi at RT Wikipedia →

Samarium waxaa loo isticmaalaa magnetics xoog leh iyo daaweynta kansarka.

Eeg astaamaha

Atomic mass150.36 u
Cidhiidhi7.52 g/cm³
Natiijooyinka1345.0 K
Natiijooyinka2067.0 K
MuuqaalkaMadow oo fidsan oo bir ah
Xaaladda heerkulka qolkaCidhiidhi

Eegista

Electronegativity1.17 (Pauling)
1st Ionization544.5 kJ/mol
Istaraatiijiyad15.6 kJ/mol
Nidaamka+2, +3

_Cusub:

Nidaamka[Xe] 4f6 6s2
Awooda180.0 pm
Xaraf198.0 pm
Van der Waals229.0 pm

Dib u eegista

La OgaadayLecoq de Boisbaudran
Sannadka la helay1879
_MeelParis, Faransiiska
MagacaabistaMagaca ka dib saamskite macdanta, ka dib markii rasmiga ah ee Ruushka Vasili Samarsky-Bykhovets

_Warbixinta Samarium

Samarium waa mid aad u adag oo silig ah oo si tartiib ah oo ku oxides hawada. Samarium-cobalt magnets ahaa magnets dhulka ugu horeysay oo aad u yar oo sii muhiim ah u ah codsiyada heerkulka sare.

Barnaamijyada

Samarium-cobalt magnets, daaweynta kansarka (samarium-153), nuclear reactor xakamaynta rods, iyo catalysts.

Xaqiiqo xiiso leh

Samarium-cobalt magnets shaqeeyaan ilaa 700 darajo C, ka badan magnets neodymium, iyaga ka dhigaysa muhiim u ah mashiinada jet.

Isotoobyo

Tirada Tirada Half-Life Xasiloon
147 0.1499% 1.06e11 years Ha
149 0.1382% - Haa
150 0.0738% - Haa
152 0.2675% - Haa

Nidaamka

[Xe] 4f6 6s2

La barbardhigo

La barbardhigo qaybaha kale

Fur Qalabka La Xiriirinta
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