atomic mass
/əˌtɒmɪk ˈmæs/noun
उच्चारण अटॉमिक मैस
परमाणु द्रव्यमान
Advanced word
noun
- 1
[C/U] chemistry
the mass of an atom of a chemical element, usually expressed in atomic mass units, compared with one twelfth of the mass of an atom of carbon-12
परमाणु द्रव्यमान
- The atomic mass of hydrogen is about 1 unit.
- Mendeleev arranged the elements in order of their atomic masses.
§Grammar and usage
Usage: In chemistry books it is often called relative atomic mass, and older books call it atomic weight.
Usage: Chemistry की किताबों में इसे अक्सर relative atomic mass कहा जाता है, और पुरानी किताबें इसे atomic weight कहती हैं।