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atomic number

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atomic number
number of protons within a nucleus

Wikipedia English The Free Encyclopedia

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Atomic number
In chemistry and physics, the atomic number of a chemical element (also known as its proton number) is the number of protons found in the nucleus of an atom of that element, and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element. In an uncharged atom, the atomic number is also equal to the number of electrons.

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WordNet 2.0 Dictionary

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atomic number

Noun
1. 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
(hypernym) number
(hyponym) magic number


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atomic number
n. atomové číslo

Integrated Circuit Dictionary

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Atomic Number
the number of protons and electrons in an atom of a specific element in the ground state.

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