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72-92 elements
Definition | Term |
---|---|
Hafnium | Hf |
Tantalum | Ta |
Tungsten | W |
Rhenium | Re |
Osmium | Os |
Iridium | Ir |
Platinum | Pt |
Gold | Au |
Mercury | Hg |
Thallium | Tl |
Lead | Pb |
Bismuth | Bi |
Polonium | Po |
Astatine | At |
Radon | Rn |
Francium | Fr |
Radium | Ra |
Actinium | Ac |
Thorium | Th |
Protactinium | Pa |
Uranium | U |