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🇨🇳Chinese Source WordCode: ZH

克原子

Pronunciation / Transliteration: kè yuánzǐ

🇬🇧 Direct English Meaning:
Gram-atom/ˈɡræmˌæt.əm/
nounCEFR C1 (Advanced)Top #45200 frequency
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🇨🇳 Example Sentence in Chinese:

"一克原子碳等于十二克。"

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The mass of an element in grams that is numerically equal to its atomic weight.

    "One gram-atom of carbon is exactly twelve grams."
  2. 2

    A former unit representing an amount of a substance containing the same number of atoms as 12 grams of carbon-12, now largely superseded by the mole.

    "Calculations involving older chemical literature frequently utilize the gram-atom to express elemental quantities."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Coined in the late 19th century as a scientific compounding of the metric unit prefix 'gram' (derived from French 'gramme' and ultimately Greek 'gramma', a small weight) and 'atom' (from Ancient Greek 'atomos', indivisible). It emerged within chemistry and physics nomenclature to denote a specific macroscopic quantity of an element proportional to its atomic weight.

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