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</html><description>Van alle metalen in het periodiek systeem beweert Technetium het eerste kunstmatig geproduceerde element te zijn. Een ander interessant feit is dat het van nature in kleine concentraties voorkomt in astero&#xEF;den en sterren. Aan de andere kant houden sommige van de moderne toepassingen verband met kernfusie. Ontdek andere aspecten van dit zilverachtige, kristallijne chemische element. ... Lees verder</description></oembed>
