| atomic nucleus |
The positively charged core of an atom.
출처: www.neo.state.ne.us/statshtml/glossarya.htm
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|---|---|
| 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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| atomic | a trivalent metallic element of the rare earth group |
|---|---|
| atomic | a soft silvery metallic element of the rare earth group |
| atomic | a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas |
| atomic | a soft silvery metallic element |
| atomic | a trivalent metallic element of the rare earth group |
| atomic | a gray tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals |
| atomic | a hard gray lustrous metallic element that is highly corrosion-resistant |
| atomic | a heavy gray-white metallic element |
| atomic | a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys |
| atomic | a hard brittle blue-gray or blue-black metallic element that is one of the platinum metals |
| atomic | a heavy brittle metallic element of the platinum group |
| atomic | a heavy precious metallic element |