Reference Terms
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Isotope
Isotopes are forms of an element whose nuclei have the same atomic number–-the number of protons in the nucleus--but different mass numbers because they contain different numbers of neutrons.
Note: The above text is excerpted from the Wikipedia article "Isotope", which has been released under the GNU Free Documentation License.
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April 16, 2025
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Apr. 16, 2025 — A new study analyzing data from NASA's Perseverance rover has uncovered compelling evidence of multiple mineral-forming events just beneath the Martian surface -- findings that bring scientists one step closer to answering the profound question: Did ...
Apr. 16, 2025 — Researchers have helped overturn the popular theory that water on Earth originated from asteroids bombarding its surface; Scientists have analyzed a meteorite analogous to the early Earth to ...
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