amu

IPA/ˈɑːmuː/
IPA/ˈɑːmuː/

amu — abbreviation

1. the abbreviation for atomic mass unit, a very small unit scientists use for the

1.縮寫C1
釋義

the abbreviation for atomic mass unit, a very small unit scientists use for the mass of atoms and molecules.

例句

Kemi wrote sixteen amu beside the oxygen atom during chemistry class.

write a mass value in amu

The chart showed helium at four amu and neon at twenty.

compare atomic masses in amu

同義詞
  • u

    the modern symbol most science textbooks use for the same measurement unit

  • dalton

    a near-equivalent unit name often used for atomic or molecular mass

文法句型

16 amu

mass in amu

weigh about one amu

用法筆記

Usually written after a number when scientists compare the mass of atoms, ions, or molecules. Many modern science texts may also use u or dalton for nearly the same unit.

常見錯誤

❌The atom weighs 16 amu units.
✅The atom weighs 16 amu.
💡The abbreviation already includes the idea of a unit.