Gd

Gadolinium

Qaybta 64 · 157.25 u

Lanthanide f-block Waqtiga 6 Cidhiidhi at RT Wikipedia →

Gadolinium waxaa ku jira astaamo magnetic aan caadi ahayn iyo si ballaaran loo isticmaalo sida a MRI midab kala duwan wakiil ah.

Eeg astaamaha

Atomic mass157.25 u
Cidhiidhi7.895 g/cm³
Natiijooyinka1585.0 K
Natiijooyinka3546.0 K
MuuqaalkaMadow oo fidsan oo bir ah
Xaaladda heerkulka qolkaCidhiidhi

Eegista

Electronegativity1.2 (Pauling)
1st Ionization593.4 kJ/mol
Istaraatiijiyad13.22 kJ/mol
Nidaamka+1, +2, +3

_Cusub:

Nidaamka[Xe] 4f7 5d1 6s2
Awooda180.0 pm
Xaraf196.0 pm
Van der Waals237.0 pm

Dib u eegista

La OgaadayJean Charles Galissard de Marignac
Sannadka la helay1880
_MeelGeneva, Switzerland
MagacaabistaWaxaa loo bixiyey Johan Gadolin, kiimiko Finland ah

_Warbixinta Gadolinium

Gadolinium waa mid casaan-caddaan ah, malleable bir ah oo leh xarigga ugu sarreeya ee neutron thermique ee wax kasta oo ka mid ah qaybaha la yaqaan. Waa ferromagnetic ku dhow heerkulka qolka iyo loo isticmaalo MRI kala duwanaanshaha wakiilada.

Barnaamijyada

MRI, neutron radiography, nuclear reactor shididda, iyo magnetorefrigerant alloys.

Xaqiiqo xiiso leh

Gadolinium waxaa ka sarreeya neerfaha soo saarka cross-qaybta mid kasta oo ka mid ah qaybta joogtada ah, taas oo ka dhigaysa mid aan qiimo lahayn ee nuclear reactor xakamaynta.

Isotoobyo

Tirada Tirada Half-Life Xasiloon
155 0.148% - Haa
156 0.2047% - Haa
157 0.1565% - Haa
158 0.2484% - Haa

Nidaamka

[Xe] 4f7 5d1 6s2

La barbardhigo

La barbardhigo qaybaha kale

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