Palladium - Jul 02
Palladium is a chemical element with the chemical symbol Pd and an atomic number of
46. It is a rare and lustrous silvery-white metal discovered in 1803...(more)
Rhodium - Jul 02
Rhodium is a chemical element that is a rare, silvery-white, hard,
and chemically inert transition metal and a member of the platinum group.
It has...(more)
Ruthenium - Jun 15
Ruthenium is a chemical element with symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of...(more)
Technetium - Jun 15
Technetium is the chemical element with atomic number 43 and symbol Tc. It is the lowest atomic number element without any stable isotopes; every form...(more)
Molybdenum - Jun 15
Molybdenum is a Group 6 chemical element with the symbol Mo and atomic number 42. The name is from Neo-Latin Molybdaenum, from Ancient...(more)
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