| atomic nucleus |
The nucleus (atomic nucleus) is the center of an atom. Nuclei are composed of protons and neutrons. The number of protons in an atomic nucleus is called the atomic number, and determines which element the atom is. For example, a nucleus with one proton (which is the only nucleus that may have no neutrons) constitutes an atom of hydrogen, with six protons, carbon, or with eight, oxygen. The number of neutrons determines the isotope of the element. ...
출처: en.wikipedia.org/wiki/Atomic_nucleus
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| atomic nucleus |
The positively charged core of an atom.
출처: www.neo.state.ne.us/statshtml/glossarya.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 nucleus |
The heavy, positively charged, central part of an atom, which contains protons, neutrons, and most of the atomic mass.
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