The relative atomic mass is a measure of the mass of one atom of the element. ... Write the numbers of each atom in the formula. Insert the relative ... Calculate the relative formula mass of the compound with the formula: Fe 2(SO4)3. Answer.
Aug 3, 2008 - (b) Thomson Measured charge to mass ratio of the electrons (e/m); proposed plum pudding model. ... Atomic mass number is the sum total of protons and neutrons in an atom. (b) Which of these ... (d) Fe (NO3)2 iron cation +2.