Kala saar Qaybaha

Dooro ilaa 4 qaybaha si aad u barbardhigo astaamahooda dhinac ka dhinac.

Pm

Promethium

#61 · Lanthanide

Cirro145.0 u
Cidhiidhi7.26 g/cm³
Ku shub1315.0 K
Ku shub3273.0 K
Electronegativity1.13
Istaraatiijiyad540.0 kJ/mol
Awooda183.0 pm
Blokf-block
Gobol (RT)Cidhiidhi
_Fiirso[Xe] 4f5 6s2
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