1) Chemical property
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(Z) The number of protons in an atomic nucleus. The atomic number and the element symbol are two alternate ways to label an element. In nuclide symbols, the atomic number is a leading subscript; for example, in
126C, the '6' is the atomic number.
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http://antoine.frostburg.edu/chem/senese/101/glossary/a.shtml
(symbolized Z) (R Numar Atomic)The number of protons in a nucleus. It determines the chemical properties of an element
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the number of a chemical element (q.v.) in the periodic system, whereby the elements are arranged in order of increasing number of protons in the ... [15 related articles]
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http://www.britannica.com/eb/a-z/a/120
is the number of protons in the nucleus of an atom. It is the whole number on the periodic chart. It is also the number of electrons in a neutral atom (where protons = electrons).
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http://www.chemicalglossary.net/definition/120-ATOMIC_NUMBER
Number of protons in an element.
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http://www.chemicalglossary.net/definition/184-Atomic_Number
Integral number of protons in the nucleus; defines the identity of element.
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http://www.chemistry-dictionary.com/definition/atomic+number.php
order of an element in the periodic chemical classification, identified with the number of protons in the atomic nucleus NOTE - Z = A - N where A is the mass number and N the number of neutrons in the atomic nucleus.
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Integral number of protons in the nucleus, defines the identity of element.
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http://www.encyclo.co.uk/local/20728
<chemistry> Symbol Z. The number of protons in the nucleus of an atom and also its characteristic atomic number. The atomic numbers of the known elements form a complete series from 1 (hydrogen) to 103 (lawrencium). ... (16 Dec 1997) ...
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http://www.encyclo.co.uk/local/20973
(Z) a number expressive of the number of protons in an atomic nucleus, or the positive charge of the nucleus expressed in terms of the electronic charge.
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http://www.encyclo.co.uk/local/21001
the total number of protons in the nucleus of an atom.
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http://www.encyclo.co.uk/local/21808
The number of protons in the nucleus of a given atom. Elements are distinguished from each other by their atomic numbers.
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http://www.encyclo.co.uk/local/22291
The number of protons in an atom
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http://www.fisicx.com/quickreference/science/glossary.html
(Z) Type: Term Definitions: 1. the number of protons in the nucleus of an atom; it indicates the position of the element in the periodic system.
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Specific to individual elements
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Number of protons in the nucleus of an atom.
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http://www.physicalgeography.net/physgeoglos/a.html
In chemistry, an atomic number is a number, characteristic of an atom, that represents the number of protons in the nucleus of the atom. It indicates the location of an element in the periodic table.
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The number of protons in an atom..
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http://www.quick-facts.co.uk/science/glossary.html
Number of protons in an element.
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http://www.shodor.org/UNChem/glossary.html
The atomic number (Z) of an element is the number of protons each atom of that element has in its nucleus; e.g., Z = 17 for chlorine (
17Cl).The atomic number was originally defined as an index describing the position of an element in the periodic table and it was not until 1913 that it was known that it was a unit of measurement. Click o...
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noun the order of an element in Mendeleyev`s table of the elements; equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element
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Number of protons in the nucleus of an atom. It is equal to the positive charge on the nucleus. In a neutral atom, it is also equal to the number of electrons surrounding the nucleus. The chemical elements are arranged in the periodic table of the elements according to their atomic number. Nuclear notation is used to label an atom according to the ...
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The number of protons in an atom, a quantity that determines which element the atom represents. Example: all atoms of oxygen have 8 protons.
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https://www.encyclo.co.uk/local/22327
the number of positive charges or protons in the nucleus of an atom of a given element, and therefore also the number of electrons normally surrounding the nucleus. Abbr.: at. no.; Symbol: Z Also called
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https://www.infoplease.com/dictionary/atomic-number
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