: an arrangement of chemical elements based on the periodic law
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The two metals appear on the same line in the periodic table with their proton count and also their atomic number separated only by mercury (80) and thallium (81).—Tim Treadgold, Forbes.com, 13 May 2025 This is the conclusion of a new study by physicists from the Los Alamos National Laboratory in New Mexico, which could shine a light on the mysterious origins of the elements at the bottom of the periodic table.—Mohammed Soliman, MSNBC Newsweek, 28 Apr. 2025 Micro-LEDs are usually based on what are called III-V semiconductors – essentially, alloys made of elements from group III and group V of the periodic table.—Michael Irving, New Atlas, 30 Mar. 2025 Some semiconductors based on a compound containing elements from group III and group V in the periodic table—for example the compound gallium nitride—have an unusual and remarkable property.—IEEE Spectrum, 30 Jan. 2024 See All Example Sentences for periodic table
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