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Atomic weight

The sum of the weights of an atom's protons and neutrons, the atomic weight differs between isotopes of the same element.

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  • Category: Anatomy
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Related terms

atomic weight
Medical devices; Radiology equipment

The mass of an atom, expressed in atomic mass units. For example, the atomic number of helium-4 is 2, the atomic mass is 4, and the atomic weight is 4.00026.

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The sum of the weights of an atom's protons and neutrons, the atomic weight differs between isotopes of the same element.

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1. The mass of a particular atom in atomic mass units (amu). 2. A number characterizing the average mass of individual atoms for a specific isotope of an element. Thus, carbon 12 ...

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Weighted average of the masses of stable isotopes of an element as they occur in nature, based on the abundance of each isotope of the element and the atomic mass of the isotope ...

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Combined weight of an atom's electrons, protons, and neutrons.

atomic weight
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The weighted average of the masses of naturally occurring isotopes of a given element.

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