| isotope |
Two or more forms of an element having the same number of protons in the nucleus (or the same atomic number), but having different numbers of neutrons in the nucleus (or different atomic weights). Isotopes of single element possess almost identical chemical properties. An example of isotopes are plutonium-238, plutonium-239, plutonium-240, and plutonium-241, each acts chemically like plutonium but have 144, 145, 146, and 147 neutrons, respectively.
출처: www.stoller-eser.com/Annuals/2003/AppendixE.htm
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| isotope |
A species of nucleus with a fixed number of protons and neutrons. The term isotope is usually used to distinguish nuclear species of the same chemical element (ie, those having the same number of protons, but different numbers of neutrons), such as iodine 127 and iodine 131.
출처: www.eh.doe.gov/ohre/roadmap/achre/glossary.html
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| isotope |
An isotope is an atom that has a different number of neutrons in its nucleus. Thus, an isotope has a different mass when compared to other atoms of the same element.
출처: www.mansfieldct.org/schools/mms/staff/hand/Chemvoc...
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| isotope |
One of two or more forms of an element all having the same chemical properties but with different numbers of neutrons, different relative atomic mass, and different nuclear properties.
출처: www.llrc.org/jargonbuster.htm
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| isotope |
Different forms of atoms of the same element. They have the same number of protons in their nuclei but a different number of neutrons (the same atomic number but different atomic weights). Uranium-238 and uranium-235 are isotopes of uranium. Isotopes may be stable (not spontaneously decaying) or unstable (spontaneously decaying, emitting ionizing radiation).
출처: www.nuce.boun.edu.tr/glossary.html
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