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
This approximation of mass can be used to easily calculate how many neutrons an element has by simply subtracting the number of protons from the mass number.
From Textbooks • Jun. 9, 2022
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
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.
