atomic mass

Example Sentences

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Potassium occurs naturally in three isotopic forms -- potassium-39, potassium-40, and potassium-41 -- each differing slightly in atomic mass.

From Science Daily • Oct. 17, 2025

The team was able to determine that the r-process can produce atoms with an atomic mass of at least 260 before they fission.

From Science Daily • Dec. 7, 2023

Twelve, named for the atomic mass of carbon, has developed a process to make jet fuel using renewable electricity, water and waste biomass CO2 instead of fossil fuels.

From Seattle Times • Jul. 12, 2023

Calculate the number of fissions and the approximate mass of uranium and plutonium fissioned, taking the average atomic mass to be 238.

From Textbooks • Aug. 12, 2015

The best evidence that these particles are of atomic mass is furnished by their deflection in electric and magnetic fields.

From A Brief Account of Radio-activity by Venable, Francis Preston