The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based...
34 KB (4,002 words) - 06:55, 14 August 2024
The atomic number or nuclear charge number (symbol Z) of a chemical element is the charge number of an atomic nucleus. For ordinary nuclei composed of...
15 KB (1,937 words) - 12:14, 18 August 2024
Atom (redirect from Atomic chemical)
are attracted to the protons in an atomic nucleus by the electromagnetic force. The protons and neutrons in the nucleus are attracted to each other by the...
125 KB (12,755 words) - 20:25, 13 August 2024
Mass number (redirect from Atomic mass number)
nucleons) in an atomic nucleus. It is approximately equal to the atomic (also known as isotopic) mass of the atom expressed in atomic mass units. Since...
8 KB (1,101 words) - 02:39, 15 April 2024
Rutherford model (redirect from Rutherford Atomic Model)
containing most of the atom's mass; this region would be known as the atomic nucleus. The Rutherford model was subsequently superseded by the Bohr model...
12 KB (1,558 words) - 00:11, 20 August 2024
up nucleus in Wiktionary, the free dictionary. Nucleus (pl.: nuclei) is a Latin word for the seed inside a fruit. It most often refers to: Atomic nucleus...
3 KB (368 words) - 06:33, 20 June 2024
Nuclear shell model (redirect from Shell model of the atomic nucleus)
rules for the ordering of the nucleus shells are similar to Hund's Rules of the atomic shells, however, unlike its use in atomic physics, the completion of...
30 KB (4,052 words) - 22:21, 25 June 2024
hydrogen atom, and the atomic number had been identified as the charge on the nucleus.: §1.1.2 Throughout the 1920s, the nucleus was viewed as composed...
75 KB (8,724 words) - 10:55, 24 August 2024
Neutron (section Neutrons in an atomic nucleus)
behave similarly within the nucleus, they are both referred to as nucleons. Nucleons have a mass of approximately one atomic mass unit, or dalton (symbol:...
115 KB (12,957 words) - 19:44, 8 August 2024
The shape of the atomic nucleus depends on the variety of factors related to the size and shape of its nucleon constituents and the nuclear force holding...
29 KB (3,338 words) - 18:01, 14 July 2024