Choose the correct Statements from among the following:
A. All atomic masses of atoms are expressed taking C12 isotope as the reference and this scale is referred as unified scale (u).
B. One atomic mass unit (amu) is equal to the mass of one atom of C – 12 isotope.
C. The atomic mass of an element is the average relative mass of its atoms (isotopes) as compared to \(\frac{1}{12}\)th mass of the atom of C – 12 isotope.
D. The empirical formula gives the exact number of atoms of all the elements present in that compound.
Answer:A
Choose the correct Statements from among the following:
A. All atomic masses of atoms are expressed taking C12 isotope as the reference and this scale is referred as unified scale (u). B. One atomic mass unit (amu) is equal to the mass of one atom of C – 12 isotope. C. The atomic mass of an element is the average relative mass of its atoms (isotopes) as compared to \(\frac{1}{12}\)th mass of the atom of C – 12 isotope. D. The empirical formula gives the exact number of atoms of all the elements present in that compound.