
1) Atom 2) Isotone 3) Isotope
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https://www.crosswordclues.com/clue/nuclide

Compare with atomic nucleus and nuclide symbol. An atom or ion with a specified mass number and atomic number. For example, uranium-235 and carbon-14 are nuclides.
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http://antoine.frostburg.edu/chem/senese/101/glossary/n.shtml

A nuclide (from nucleus) is an atomic species characterized by the specific constitution of its nucleus, i.e., by its number of protons Z, its number of neutrons N, and its nuclear energy state. The word nuclide was proposed by doctor Truman P. Kohman in 1947. Kohman originally suggested nuclide as referring to a `species of nucleus` defined by .....
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http://en.wikipedia.org/wiki/Nuclide

species of atom as characterized by the number of protons, the number of neutrons, and the energy state of the nucleus. A nuclide is thus ... [5 related articles]
Found on
http://www.britannica.com/eb/a-z/n/62

An atom of a specific isotope, characterized by its atomic number, mass number, and its energy state. Conditions with a life of less than 10
-10s are called excited conditions of a nuclide. At present, more than 2,770 different nuclides are known, distributed over the 113 curre...
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http://www.daviddarling.info/encyclopedia/N/nuclide.html

species of atom characterized by its mass number and atomic number NOTE - A nuclide may also be characterized by its nuclear energy state, provided that the mean life in that state is long enough to be observable.
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http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=111-14-19

species of atom characterized by its nucleon number and proton number NOTE - A nuclide may also be characterized by its nuclear energy state, provided that the mean life in that state is long enough to be observable.
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http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=393-11-19

a species of atom characterized by its mass number and atomic number
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http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=881-02-35

A species of atom which is characterised by the number of protons and neutrons and, in some cases, by the energy state of the nucleus.
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http://www.encyclo.co.uk/local/20474

elemental matter made up of atoms with identical nuclei, therefore with the same atomic number and the same mass number (equal to the sum of the number of protons and neutrons)
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http://www.encyclo.co.uk/local/20725

<physics> A species of atom characterised by the constitution of its nucleus, which is specified by the number of protons (Z), number of neutrons (N) and energy content or, alternatively, by the atomic number (Z), mass number (A = N + Z) and atomic mass, to be regarded as a distinct nuclide, an atom must be capable of existing for a measurabl...
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http://www.encyclo.co.uk/local/20973

(noo´klīd) a species of atom characterized by the charge, mass, number, and quantum state of its nucleus, and capable of existing for a measurable lifetime (usually more than 10−10 sec). radioactive nuclide radionuclide.
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http://www.encyclo.co.uk/local/21001

a general term applicable to all atomic forms of an element. Nuclides are characterized by the number of protons and neutrons in the nucleus, as well as by the amount of energy contained within the atom.
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http://www.encyclo.co.uk/local/21808

A nuclide describes an Atom who's properties are a function of the number of Protons and Neutrons contained in the Nucleus . A nuclide does not have to be Radioactive , if it is then its known as a Radionuclide .
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http://www.ionactive.co.uk/glossary_atoz.html?s=az&t=n

Type: Term Pronunciation: nū′klīd Definitions: 1. A particular (atomic) nuclear species with defined atomic mass and number.
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http://www.medilexicon.com/medicaldictionary.php?t=61820

An atom characterized by the number of protons, neturons, and energy in the nucleus.
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https://www.encyclo.co.uk/local/20094

In physics, a species of atomic nucleus characterized by the number of protons (
Z) and the number of neutrons (
N). Nuclides with identical proton number but differing neutron number are called isotopes
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https://www.encyclo.co.uk/local/21221

an atomic species in which the atoms all have the same atomic number and mass number. · an individual atom in such a species.
Found on
https://www.infoplease.com/dictionary/nuclide

elemental matter made up of atoms with identical nuclei, therefore with the same atomic number and the same mass number (equal to the sum of the number of protons and neutrons).
Found on
https://www.world-nuclear.org/nuclear-basics/glossary.aspx
No exact match found.