Mangaineis

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'S e eileamaid cheimigeach a tha ann am mangaineis le samhla Mn agus àireamh atamach 25.

Mangaineis
Manganese electrolytic and 1cm3 cube.jpg
Mangaineis.
Clàr pillteach
HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBa*HfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRa**RfDbSgBhHsMtDsRgCnNhFlMcLvTsOg
*LaCePrNdPmSmEuGdTbDyHoErTmYbLu
**AcThPaUNpPuAmCmBkCfEsFmMdNoLr
Buadhan
SamhlaMn
Àireamh25
Buidheann7, Mangaineis
Ùine4
Blocad
SeòrsaMeatailt trastach
Buadhan stuthach
DathAirgead
Teothachd leaghaidh1519 K ​(1246 °C, ​2275 °F)
Teothachd goilidh2334 K ​(2061 °C, ​3742 °F)
Buadhan atamach
Tomad atamach/Da54.938044(3)[1]
Comh-dhealbhadh atamach[Ar] 3d5 4s2
Cor ogsaideachaidh−3, −2, −1, +1, +2, +3,+4, +5, +6, +7
1mh lùth aidheonachaidh/kJ mol–1717.3
2mh lùth aidheonachaidh/kJ mol–11509.0
3mh lùth aidheonachaidh/kJ mol–13248

'S e meatailt trastach, cruaidh, brisg a tha ann. Chan eil ach aon iosatòp seasmhach ann, 55Mn. Tha 24 iosatòpaichean neo-sheasmhach cuideachd.

Eachdraidh

Tha an t-ainm "mangaineis" a' dol, coltach ri "magnesium" agus "magnat", à Magnesia anns a' Ghrèig.

Ann an 1774 rinn Johan Gottlieb Gahn sampla de mhangaineis nuair a dh'iom-obraich e mangaineis dà-ogsaid cuide ri carbon.

Cleachdadh

Cleachdar mangaineis san gnìomhachas-saothrachaidh stàilinne.

Iomraidhean

  1. http://ciaaw.org/atomic-weights.htm

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