Magnesium
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'S e eileamaid cheimigeach a tha ann am magnesium le samhla Mg agus àireamh atomach 12.
| Magnesium | |
|---|---|
 | |
| Magnesium criostalaichte | |
| Buadhan | |
| Samhla | Mg |
| Àireamh | 12 |
| Buidheann | Meatailtean talmhaidh alcaileach (2, IIa) |
| Ùine | 3 |
| Bloca | s |
| Seòrsa | meatailtean talmhaidh alcaileach |
| Buadhan stuthach | |
| Dath | Geal–liath |
| Buadhan atamach | |
| Tomad atamach/Da | 24.304–24.307 g mol–1 |
| Comh-dhealbhadh atamach | [Ne] 3s2 |
| Cor ogsaideachaidh | +2,+1 |
| 1mh lùth aidheonachaidh/kJ mol–1 | 737.7 kJ mol–1 |
| 2mh lùth aidheonachaidh/kJ mol–1 | 1450.7 kJ mol–1 |
| 3mh lùth aidheonachaidh/kJ mol–1 | 7732.7 kJ mol–1 |
'S e meatailt talmhaidh alcaileach le feartan coltach ri na feartan sodium is potasium a tha ann.
Taisgealadh
Ann an 1808 rinn Humphry Davy magnesium fìor-ghlan nuair a chuir e sruth dealain tro mheasgachadh magnesium ogsaid agus mearcair ogsaid (HgO).
Cleachdadh
Tha ceimigear fàs-bheairteach a' cleachdadh magnesium ann an co-thàthaidhean Grignard. Tha co-thàthaidhean Grignard cuideachail airson ataman carbon a cheangal.
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