Uranium
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'S e eileamaid cheimigeach a tha ann an uranium le samhla U agus àireamh atamach 92.
| Uranium | |
|---|---|
 | |
| Ciùbaichean uranium dèanta sam Pròiseact Manhattan | |
| Buadhan | |
| Samhla | U |
| Àireamh | 92 |
| Ùine | 7 |
| Bloca | f |
| Seòrsa | Actanach |
| Buadhan stuthach | |
| Dath | Airgead-liath |
| Teothachd leaghaidh | 1405.3 K (1132.2 °C, 2070 °F) |
| Teothachd goilidh | 4404 K (4131 °C, 7468 °F) |
| Buadhan atamach | |
| Tomad atamach/Da | 238.02891(3)[1] |
| Comh-dhealbhadh atamach | [Rn] 5f3 6d1 7s2 |
| Cor ogsaideachaidh | +1, +2, +3, +4, +5, +6 |
| 1mh lùth aidheonachaidh/kJ mol–1 | 597.6 kJ/mol |
| 2mh lùth aidheonachaidh/kJ mol–1 | 1420 kJ/mol |
'S e actanach agus meatailt beagan rèidio-bheò a tha ann.
Eachdraidh
Ann an 1789 lorg Martin Heinrich Klaproth nuair a dh'obraich e le pitchblende. Rinn e pùdar dubh agus chreid e gum b' e uranium fhèin a bha ann, ach 's dòcha gum bu e uranium ogsaid a bha ann.Dh'ainmich e air Urànus a lorgadh le William Herschel ann an 1781.
Ann an 1841 rinn Eugène-Melchior Péligot uranium fìor-ghlan nuair a theasaich e uranium ceithir-chlòraid còmhla ri potasium.
Iomraidhean
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