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Actinide
The actinide series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table with atomic numbers 89 - 103.
Note: The above text is excerpted from the Wikipedia article "Actinide", which has been released under the GNU Free Documentation License.
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April 14, 2025
Apr. 11, 2025 — A team of researchers reported the first direct observation of a surprising quantum phenomenon predicted over half a century ago known as a superradiant phase transition, which occurs when two groups of quantum particles begin to fluctuate in a ...
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Apr. 14, 2025 — Researchers may have answered one of space science's long-running questions -- and it could change our understanding of how life began. Carbon-rich asteroids are abundant in space yet make up less than 5 per cent of meteorites found on ...
Apr. 14, 2025 — Whether for cooking, heating, as a light source or for making tools -- it is assumed that fire was essential for the survival of people in the Ice Age. However, it is puzzling that hardly any ...
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Apr. 14, 2025 — Researchers have developed and tested an intervention called Counter-Attitudinal Advocacy and compared it to to the well-established Personalized ...
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