Statement 1 : The standard unit for expressing the mass of atom is amu.Statement 2 : amu is also called avogram.

Atomic mass is very less because atoms are very smallHence atomic mass can explained relative to C12 isotopethe mass of  C12 isotope is assigned as 12amu and masses of all other atoms are given relative to this standard 1amuBoth statement 1 and statement 2 are correct