| atomic weight |
The average weight (or mass) of all the isotopes of an element, as determined from the proportions in which they are present in a given element, compared with the mass of the 12 isotope of carbon (taken as precisely 12.000), that is the official international standard; measured in daltons.
출처: ilrdss.sws.uiuc.edu/glossary/glossary_allresults.a...
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|---|---|
| atomic mass |
The average mass of one atom of an element.
출처: jmsscienceweb.tripod.com/vocabulary.htm
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| atomic nucleus |
A tiny structure at the center of an atom, containing almost all the mass of the atom. Consists of protons and neutrons.
출처: www.wro.org/ras/glossary/a-c.htm
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| atomic number |
The number of protons in an atom's nucleus, which distinguishes it from the atoms of other elements.
출처: www.environment.nelson.com/0176169040/glossary.htm...
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| atom |
The basic component of all matter. The atom is the smallest particle of an element that has all of the chemical properties of that element. Atoms consist of a nucleus of protons and neutrons surrounded by electrons.
출처: legacystory.apps.em.doe.gov/text/link/link12.htm
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