Assertion: metal's density | /r/HasProperty | the most dense element
Facets:
value: currently
type: TEMPORAL
Source sentences:
text: This small radius and high weight cause it to be expected to have an extremely high density of around 46 g·cm−3, over twice that of osmium, currently the most dense element known, at 22.61 g·cm−3; unhexquadium should be the second most dense element in the first 9 periods of the periodic table, with only its neighbour unhextrium (element 163) being more dense (at 47 g·cm−3).