From Wikipedia, the free encyclopedia
At koobaltskööl as det 9. skööl faan a cheemisk elementen. Det san koobalt, roodium, iriidium an det konstelk element meitneerium. Jo hiar aaltumaal tu det seerie faan a auergungsmetalen.
Tekst üüb Öömrang |
Skööl | 9 |
Periode | |
4 | 27 Co |
5 | 45 Rh |
6 | 77 Ir |
7 | 109 Mt |
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