If you want to know where the data comes from for any particular property, then select that property. You'll see graphs for the properties as well. What follows is a brief description of technetium. Since its discovery, searches for the element technetium in terrestrial materials have been made without success.
Technetium is a silvery-grey metal that tarnishes slowly in moist air.
Until 1960, technetium was available only in small amounts. The chemistry of technetium is related to that of rhenium. All rights reserved.