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atomic number
|
a trivalent metallic element of the rare earth group |
|
atomic number
|
a trivalent metallic element of the rare earth group |
|
atomic number
|
a soft silvery metallic element of the rare earth group |
|
atomic number
|
a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas |
|
atomic number
|
a soft silvery metallic element |
|
atomic number
|
a trivalent metallic element of the rare earth group |
|
atomic number
|
a gray tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals |
|
atomic number
|
a hard gray lustrous metallic element that is highly corrosion-resistant |
|
atomic number
|
a heavy gray-white metallic element |
|
atomic number
|
a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys |
|
atomic number
|
a hard brittle blue-gray or blue-black metallic element that is one of the platinum metals |
|
atomic number
|
a heavy brittle metallic element of the platinum group |
