1. The definition of the relative atomic mass for an element, X, is:
A) The average mass of 1 isotope of X 12, divided by the mass of 1 atom of carbon-12
B) The average mass of 1 g of X 12, divided by the mass of 1 atom of carbon-12
C) The average mass of 1 atom of X x 12, divided by the mass of 1 atom of carbon-12
D) The average mass of 1 atom of X 12, divided by the mass of 12 g of carbon-12
constant is correct?
