Question

The table below shows the relative atomic masses and the percentage abundance of the isotopes T1 and T2 of element T

	RAM	% abundance
T1	62.93	69.09
T2	64.93	30.91

Calculate the relative atomic mass of element T 

Answer 1

R.A.M = 62.93 × 69.09 + 64.93 × 30.91
                     100                   100
         = 4347.8337 + 2006.9863
                           100
         = 6354.82
               100
         = 63.55