: an arrangement of chemical elements based on the periodic law
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Bloomberg | Bloomberg | Getty Images Rare earths refer to 17 elements on the periodic table that have an atomic structure that gives them special magnetic properties.—Sam Meredith, CNBC, 20 Apr. 2026 All the other elements in the periodic table had to be subsequently formed by stars, beginning with the supernova explosions of the most massive Population III stars.—Keith Cooper, Space.com, 16 Apr. 2026 In their purest form, rare earths aren't rocks but elemental metals – deep cuts on the periodic table, numbers 57-through-71 and two others, for those scoring at home.—Jon Wertheim, CBS News, 22 Mar. 2026 Every character has an adorable quirk or two, or at minimum owns a dorky T-shirt with a periodic table joke or a cartoon cat.—Amy Nicholson, Los Angeles Times, 18 Mar. 2026 See All Example Sentences for periodic table