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Diagram of the nuclear composition, electron configuration, and valence orbitals of an atom of neon-20 (atomic number: 10), the most common isotope of
Diagram of the nuclear composition, electron configuration, and valence orbitals of an atom of neon-20 (atomic number: 10), the most common isotope of the element neon. The nucleus consists of 10 protons (blue) and 10 neutrons (red). Ten electrons (white) occupy shells (rings); eight fill the outer (second) electron shell in what is a very stable configuration. The stability of an element's outer (valence) electrons determines its chemical and physical properties. Neon is a noble gas in group 18, period 2, and the p-block of the periodic table. An inert gas found in trace amounts in the atmosphere, it is used in neon lamps and discharge tubes.
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Photo credit: © CARLOS CLARIVAN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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