0.9902
the overall atomic mass is 204.37, but for thallium 203 it is 203, and for thallium 205, it is 205.
The number 203 and 205 have no common factors. 203 = 7 x 29 205 = 5 x 41
101.5
34.1667
205
Find the average of your readings. Divide 220 volts into it and you will have your answer.
67.6667
203
1.1429
3 x 203 = 609.
0.0197
203 times 21 wtat is the answer