Definition of atomic weight and atomic mass
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Atomic weight and atomic mass. Atomic mass is the total mass of protons and neutrons in an individual atom or isotope. Atomic weight is the average mass of all of the naturally-occurring isotopes of an element.
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Atomic Mass:-
The atomic mass is the mass of an atom. Its unit is the unified atomic mass units where 1 unified atomic mass unit is defined as ¹⁄₁₂ of the mass of a single carbon-12 atom, at rest.
Atomic Weight:-
An isotope is one of two or more species of atoms of the same chemical element that have differentatomic mass numbers (protons + neutrons). The atomic weight of helium is 4.002602, the average that reflects the typical ratio of natural abundances of its isotopes.
The atomic mass is the mass of an atom. Its unit is the unified atomic mass units where 1 unified atomic mass unit is defined as ¹⁄₁₂ of the mass of a single carbon-12 atom, at rest.
Atomic Weight:-
An isotope is one of two or more species of atoms of the same chemical element that have differentatomic mass numbers (protons + neutrons). The atomic weight of helium is 4.002602, the average that reflects the typical ratio of natural abundances of its isotopes.
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