: an arrangement of chemical elements based on the periodic law
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Neodymium is a rare earth, one of the minerals near the bottom of the periodic table that are crucial for everyday life.—Chris Isidore, CNN Money, 11 Feb. 2026 Hydrogen is the lightest element in the periodic table.—William Harwood, CBS News, 3 Feb. 2026 Tabletops in the center of the room are decorated with the periodic table of elements.—John Meyer, Denver Post, 6 Jan. 2026 Meanwhile, the corpses, which may become neutron stars, can then merge, producing the majority of the heaviest stable elements on our periodic table.—Big Think, 27 Nov. 2025 See All Example Sentences for periodic table