Meaning of the word "mass number" in English
What does "mass number" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.
mass number
US /ˈmæs ˌnʌm.bɚ/
UK /ˈmæs ˌnʌm.bər/
Noun
the total number of protons and neutrons in the nucleus of an atom
Example:
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The mass number of carbon-12 is twelve.
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Isotopes of an element have the same atomic number but a different mass number.
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