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
The mass number and atomic number of carbon-13 is 13 and 13 , while that of carbon-12 is 12 and 6 , respectively.
From Textbooks • Jun. 9, 2022
The iodine atoms are added as anions, and each has a 1− charge and a mass number of 127.
From Textbooks • Feb. 14, 2019
This gives off alpha particles at such a rate that half of it has decomposed in 150 days, leaving plutonium with atomic number 94 and mass number 238.
From A Brief History of Element Discovery, Synthesis, and Analysis by Watson, Glen W.
