Niobium is a rare metal, good additive for stainless, but not precious -
it is grey
No, zinc is not a precious metal. It is a necessary industrial metal.
Niobium (Nb), or columbium, is a shiny gray metal, but it becomes bluish when exposed to air at room temperature for a period of time. A link to the Wikipedia article on niobium is provided.
Uranium is not a precious metal (as Au, Ag, Pt,.....) but is a valuable metal mined in Namibia.
Examples of metals: iron, nickel, uranium, thorium, sodium, niobium, plutonium, etc.
They are niobium-titanium or niobium-tin intermetallic compounds.
Niobium is a metal.
Niobium is a metal. It belongs to d-block elements.
Nickel and Niobium
Niobium is a solid metal at 20 C.
No, zinc is not a precious metal. It is a necessary industrial metal.
Niobium (Nb), or columbium, is a shiny gray metal, but it becomes bluish when exposed to air at room temperature for a period of time. A link to the Wikipedia article on niobium is provided.
It is a grey-metallic metal. It is solid at room temperature.
iradium is the precious metal element apart from platinum
Niobium: metal, solid Melting point: 2477 0C Boiling point: 4 744 0C
is brass a precious metal
Many metals are "dull grey"; an example is niobium.
a lump of precious metal is called at nugget if talking about gold