Osmium is a metal
Either osmium or iridium. It's a pretty close call. Theoretically iridium should be more dense; actual measurements indicate that osmium is very slightly denser.
Yes, osmium is a metal and is conductive.
Either osmium or iridium is the densest element. It's not entirely clear which; theoretical calculations predict that one is slightly denser and experiments show that the other is denser... but the difference is so small that it's possible that tiny errors in measurement could reverse the order. Osmium in a metallic form is extremely dense, blue white, brittle and lustrous even at high temperatures, but proves to be extremely difficult to make.Osmium metal has the highest melting point and the lowest vapor pressure of the platinum family.One cubic metre of osmium would weigh about 22.65 tonnes!
iron
Osmium is a metal with a blue-gray appearance.
Osmium is a solid metal at room temperature.
Osmium is, itself, a transition metal.
Osmium has the highest density among metals so is heaviest metal.
osmium
Chromium is the hardest metal; the Mohs hardness of osmium is 7 and the Mohs hardness of chromium is 8,5.
Osmium (Os) is a platinic metal.