Assertion: technetium's property | /r/CapableOf | fill that gap
Facets:
Source sentences:
text: When he presented the table to the world in 1869, it contained four prominent gaps, one of these was just below manganese and Mendeleev predicted an element with atomic weight 43 and properties similar to its neighbours would be found to fill that gap.
text: When he presented the table to the world in 1869, it contained four prominent gaps, one of these was just below manganese and Mendeleev predicted an element with atomic weight 43 and properties similar to its neighbours would be found to fill that gap.