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gram-atom

or gram atom

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noun Chemistry.

the quantity of an element whose weight in grams is numerically equal to the atomic weight of the element.

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Also called gram-atomic mass, gram-a·tom·ic weight [gram-uh-tom-ik, -tom-]. /ˈgræm əˈtɒm ɪk, -ˌtɒm-/.

Origin of gram-atom

First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for gram-atom

British Dictionary definitions for gram-atom

gram atom

gram-atomic weight


noun

an amount of an element equal to its atomic weight expressed in grams: now replaced by the moleSee mole 4
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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