It is most likely a solid at room temperature, based on its atomic weight. Usually the heavier the atom is the higher its melting point. However: Uub is directly below Hg. It's possible that the same relativistic effects that make Mercury liquid at room temperature would affect Uub as well. In practical terms it doesn't matter. No more than a few atoms of Uub have ever been made, and with a half-life of 240 microseconds, the chances of ever accumulating enough of the material for its physical state to make any difference whatsoever are essentially nil.
None of the above. Thiamin is a compound and the terms metal, nonmetal and metalloid apply to elements.
Silicon is considered a metalloid. It exhibits properties of both metals and nonmetals.
Lutetium is a metal. It is a rare earth metal that is part of the lanthanide series on the periodic table.
Plastic is a type of material known as a polymer, which is a nonmetal in terms of its composition. It is not classified as a metal or a metalloid (semimetal).
Neptunium beryllide (NpBe3) is a solid chemical compound (not metal, nonmetal or metalloid).
Uranium is a metal, rather than a nonmetal, or metalloid.
Nails are metal.
metalloid
metalloid
metalloid
metalloid
nonmetal
Silicon is a metalloid.
Carbon is a nonmetal.
metal
metal
It is a metal.