atomic mass
nounDefinition of atomic mass
: the mass of an atom usually expressed in atomic mass units
also
: atomic weight
Examples of atomic mass in a Sentence
Recent Examples on the Web
How changes in atomic mass leave clues to our climatological past. — Dan Zak, Washington Post, "One of America’s top climate scientists is an evangelical Christian. She’s on a mission to convert skeptics.," 15 July 2019 Not only should the chemistry of the two isotopes be the same, the slight difference in atomic mass largely washes out in the watery environment of the body. — Jennifer Ouellette, Quanta Magazine, "A New Spin on the Quantum Brain," 2 Nov. 2016 How changes in atomic mass leave clues to our climatological past. — Dan Zak, Washington Post, "One of America’s top climate scientists is an evangelical Christian. She’s on a mission to convert skeptics.," 15 July 2019 Not only should the chemistry of the two isotopes be the same, the slight difference in atomic mass largely washes out in the watery environment of the body. — Jennifer Ouellette, Quanta Magazine, "A New Spin on the Quantum Brain," 2 Nov. 2016 Say, for example, that all of the gases and particles collected indicate the fission products are 6.2 percent atoms with an atomic mass of 137, 6.1 percent with 99, and so on. — Andrew Karam, Popular Mechanics, "Nuclear Forensics: How Scientists Can Tell Whether North Korea Is Lying About Its Bomb Test," 7 Jan. 2016 Some have theorized that the soda got its name from the atomic mass of lithium, which is roughly seven. — Beth Mole, Ars Technica, "7Up gets a new ingredient in Mexico—meth," 22 Sep. 2017These example sentences are selected automatically from various online news sources to reflect current usage of the word 'atomic mass.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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