Meaning Of The Word Mass number

Real Dictionary

What's the definition of Mass number? Find Mass number meanings, definitions and more at the Real Dictionary online.

Mass number Meaning

Mass number Definition
Mass number Definition

What's The Definition Of Mass number?

mass number in American English
the integer nearest in value to the atomic weight of an atom and equal to the number of nucleons in the nucleus of the atom
the number of neutrons and protons in the nucleus of an atom: the approximate mass of a given nucleus is obtained by multiplying the mass number by the fundamental unit of mass, 1.6605 × 10-24 grams (1⁄12 the mass of C12 atom)

mass number in British English
noun: the total number of neutrons and protons in the nucleus of a particular atom

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