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Atomic Structure
Atomic Structure. An updated version of this lesson is available at Visionlearning: Atomic Theory & Ions & Isotopes. In the last lesson we learned that atoms were particles ...
Atomic nucleus - Wikipedia, the free encyclopedia
The nucleus of an atom is the very small dense region of an atom, in its center consisting of nucleons (protons and neutrons). The size (diameter) of the nucleus is in the range of ...
Nucleus (atomic structure) - MSN Encarta
Nucleus atomic structure, in atomic structure, the positively charged central mass of an atom about which the orbital electrons revolve. The nucleus..

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Nucleus (atomic structure)

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Nucleus (atomic structure), in atomic structure, the positively charged central mass of an atom about which the orbital electrons revolve. The nucleus is composed of nucleons, that is, protons and neutrons, and its mass accounts for nearly the entire mass of the atom. See Elementary Particles; Neutron; Proton.

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