'S e eileamaid cheimigeach a tha ann an scandium le samhla Sc agus àireamh atamach 21. 'S e meatailt aotrom agus bog a tha ann agus tha am feartan coltach ri na feartan de itrium agus na lantanaich. Tha an aidheon 3+ de scandium glè chudromach anns a' cheimigeachd an eileamaid seo.

Scandium
Scandium sublimed dendritic and 1cm3 cube.jpg
Scandium.
Clàr pillteach
HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBa*HfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRa**RfDbSgBhHsMtDsRgCnNhFlMcLvTsOg
*LaCePrNdPmSmEuGdTbDyHoErTmYbLu
**AcThPaUNpPuAmCmBkCfEsFmMdNoLr
Buadhan
SamhlaSc
Àireamh21
BuidheannScandium (3)
Ùine4
Blocad
SeòrsaMeatailt trastach
Buadhan stuthach
DathAirgead-gheal-liath
Buadhan atamach
Tomad atamach/Da44.955908(5)[1]
Comh-dhealbhadh atamach[Ar] 3d1 4s2
Cor ogsaideachaidh+1, +2, +3
1mh lùth aidheonachaidh/kJ mol–1633.1 kJ/mol
2mh lùth aidheonachaidh/kJ mol–11235.0 kJ/mol
3mh lùth aidheonachaidh/kJ mol–12388.6 kJ/mol

Eachdraidh

Ann an 1874 lorg Lars Fredrik Nilson scandium ogsaid (Sc3O2) ann an gadolinit.[2] Dh'ainmhich e an eileamaid ùr air Lochlann (Scandinavia san Laideann).

Cleachdadh

Cleachdar a' mhòr-chuid de scandium ann an aloidhean cuide ri aluiminium san gnìomhachas fànas-adhair.

Iomraidhean

  1. http://www.ciaaw.org/atomic-weights.htm
  2. http://www.chemteam.info/Chem-History/Disc-of-Scandium.html

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