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Continue ShoppingRetro 51 Tornado Dmitri Periodic Table Mechanical Pencil - 1.15 mm
Dmitri Mendeleev developed the periodic classification of elements. He found, when all known chemical elements were arranged in order of increasing atomic weight, the resulting table displayed a recurring pattern of properties within groups of elements.
Retro 51 Tornado Collection Pencil - Dmitri Periodic Table
Engraving is not recommended for this item.