Rare-earth elements and metals, on the periodic table, with atomic numbers and chemical symbols. A set of 17 heavy metals, consisting of the lanthanide series, and the elements yttrium and scandium. Calendar #647574092
Rare-earth elements and metals, on the periodic table, with atomic numbers and chemical symbols. A set of 17 heavy metals, consisting of the lanthanide series, and the elements yttrium and scandium. Calendar #647574092