相对原子质量
Relative atomic mass The ratio of the average mass of an atom of an element to one twelfth of the mass of an atom of carbon-12. Symbol $A_r$, dimensionless.
CSCA 化学 考试术语
Relative atomic mass The ratio of the average mass of an atom of an element to one twelfth of the mass of an atom of carbon-12. Symbol $A_r$, dimensionless.
CSCA 化学 考试术语