Atomic mass
01
原子量, 原子質量
the weighted average mass of an atom of an element, taking into account the masses of all its naturally occurring isotopes
例
The atomic mass of carbon is approximately 12.01 because it averages the masses of carbon-12 and carbon-13 isotopes.
炭素の原子量は約12.01です。これは、炭素12と炭素13の同位体の質量の平均を取るためです。
