The relative atomic mass of an element is the mass of its atoms compared with that of which element? give the name, not the symbol

the relative atomic mass of an element is the mass of its atoms compared with that of which element? give the name, not the symbol.

LectureNotes said the relative atomic mass of an element is the mass of its atoms compared with that of which element? give the name, not the symbol.

Answer:
The relative atomic mass of an element is the mass of its atoms compared with that of carbon. Specifically, it is compared to the isotope carbon-12. The relative atomic mass is a dimensionless quantity and is a weighted average of the atomic masses of the isotopes of an element, taking into account their natural abundance. Carbon-12 is used as the standard reference, and its atomic mass is defined as exactly 12 atomic mass units (amu).