mass number
Example Sentences
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As an example, the masses and radii of all nuclei up to mass number 50 were calculated using this method.
From Science Daily • May 15, 2024
Together, the number of protons and the number of neutrons determine an element’s mass number, as illustrated in this figure.
From Textbooks • Jun. 9, 2022
Since an element’s isotopes will have slightly different mass numbers, scientists also determine the atomic mass, which is the calculated mean of the mass number for its naturally occurring isotopes.
From Textbooks • Jun. 9, 2022
The number of neutrons is therefore the difference between the mass number and the atomic number: A – Z = number of neutrons.
From Textbooks • Feb. 14, 2019
In this system forces were considered inherent in matter, being expressed as mechanical movements, and determined by mass, number, and weight.
From A History of Science — Volume 4 by Williams, Henry Smith
