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atomic number
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atomic number

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 composition of its nucleus.



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? Mentioned in ? References in periodicals archive
 
Scientists have created elements with atomic numbers greater than 92, but they don't exist naturally.
Name that element! Which element on the periodic table is a nightmare ... by Adams, Jacqueline / Science World
Iron and nickel belong to the eighth group of transition metals, with atomic numbers 26 and 28, respectively.
Ascorbate depletion: a critical step in nickel carcinogenesis? by Kasprzak, Kazimierz S. / Environmental Health Perspectives
The process by which the x-ray photon ejects an electron from an atom and an x-ray photon of lower energy is emitted from the atom is called Compton scattering and is important for materials with low atomic numbers.
Determining the uncertainty of x-ray absorption measurements by Wojcik, Gary S. / Journal of Research of the National Institute of Standards and Technology
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