Calcium is a metal and is a hard one
calcium is a metalloid as it stands between metal and non metal as it doesn't have all the porperties of metal. calcium oxide is not an element so neither metal or non metal it is a compound
None of the above. Thiamin is a compound and the terms metal, nonmetal and metalloid apply to elements.
Neither, calcium oxide is a compound, an oxide of calcium. Compounds cannot be classified as metals, nonmetals, or metalloids, as these are only properties of elements.You could consider it analogous to rust, but calcium's rust, instead of iron's rust.
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.
It's a metal.
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