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transition elements

environ. overgangselementer; dele af overgangsstrækning
transition element
environ. dele af overgangsstrækning
transp. del af overgangsstrækning
transition element One of a group of metallic elements in which the members have the filling of the outermost shell to 8 electrons interrupted to bring the penultimate shell from 8 to 18 or 32 electrons; includes elements 21 through 29 (scandium through copper), 39 through 47 (yttrium through silver), 57 through 79 (lanthanum through gold), and all known elements from 89 (actinium) on
environ. dele af overgangsstrækning