Eegenskapen |
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Algemian |
Nööm, Symbool, Numer | Kadmium, Cd, 48 |
Seerie | Auergungsmetal |
Skööl, Periode, Blook | 12, 5, d |
Klöör, Skak | salwer-grä metalen |
CAS-Numer | 7440-43-9 |
ATC-Code | D11 AC02 |
Uundial | 0,3 ppm |
Atomaar |
Atoommase | 112,414(4) u |
Atoomraadius (bereegent) | 155 (161) pm |
Kovalent-Raadius | 144 pm |
Van der Waals-Raadius | 158 pm |
Elektroonen | [Kr] 4d10 5s2 |
Energii | 4,2 eV |
1. Ionisiarang | 867,8 kJ/mol |
2. Ionisiarang | 1631,4 kJ/mol |
Füsikaalisk |
Tustant | fest |
Kristal | hexagonaal |
Sachthaid | 8,65 g/cm3 (25 °C) |
Hardhaid | 2,0 |
Magnetismus | diamagneetisk (Χm = −1,9 · 10−5) |
Smoltponkt | 594,22 K (321,07 °C) |
Köögponkt | 1038 K K (765 °C) |
Molaar Rüm | 13,00 · 10−6 m3/mol |
Dampwaremk | 100 kJ/mol kJ/mol |
Smoltwaremk | 6,2 kJ/mol |
Faard faan a tuun | 2310 m/s bi 293,15 K |
Elektrisk struumfeerang | 14,3 · 106 A/(V · m) |
Waremkfeerang | 97 W/(m · K) |
Cheemisk |
Oksidatsionstustant | 2 |
Oksiiden | CdO |
Sür of baasisk | lacht baasisk |
Normoolpotentiaal | −0,403 V (Cd2+ + 2 e− → Cd) |
Elektronegatiwiteet | 1,69 (Pauling-Skala) |
Isotoopen |
Isotoop | NH | t1/2 | Aktiwiteet | Energii (MeV) | Produkt | 106Cd | 1,25 % | stabiil | 107Cd | {syn.} | 6,50 h | ε | 1,417 | 107Ag | 108Cd | 0,89 % | stabiil | 109Cd | {syn.} | 462,6 d | ε | 0,214 | 109Ag | 110Cd | 12,49 % | stabiil | 111Cd | 12,8 % | stabiil | 112Cd | 24,13 % | stabiil | 113Cd | 12,22 % | 7,7 · 1015 a | β− | 0,316 | 113In | 113mCd | {syn.} | 14,1 a | β− | 0,580 | 113In | 114Cd | 28,73 % | stabiil | 115Cd | {syn.} | 53,46 h | β− | 1,446 | 115In | 116Cd | 7,49 % | (3,0±0,3) · 1019 a | β−β− | | 116Sn | |
Muar isotoopen bi List faan isotoopen |
NMR-Eegenskapen |
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Seekerhaid |
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Miast wurd SI-ianhaiden brükt. |
Kadmium (faan greks καδμία kadmía; latiinsk cadmea) as en cheemisk element mä det ufkörtang Cd an det atoomnumer 48. Hat as en auergungsmetal.
Bilen
Luke uk diar
Kwelen
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