isotope
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(ī′sŏ-tōp″)

[iso- + Gr. topos, place (chemical isotopes occupy the same place on the periodic table)]
One of a series of chemical elements that have nearly identical chemical properties but different atomic weights and electric charges. Many isotopes are radioactive.
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(ī′sŏ-tōp″)

[iso- + Gr. topos, place (chemical isotopes occupy the same place on the periodic table)]
One of a series of chemical elements that have nearly identical chemical properties but different atomic weights and electric charges. Many isotopes are radioactive.
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