Question

Which sample contains the greatest number of atoms? which sample contains the greatest number of atoms? 14 gc 102 gag 49 gcr 202 gpb?

Answer 1

The answer to this question would be: 14g of Carbon
In this question, you are given the weight of the element. Then, to find the number of atoms you need to divide the weight with the molecular mass of the each element. 

14 g c /(12 g/mole)= 1.167 mole
102 g ag /(107 g/mole)= 0.95 mole
49 g cr /(52 g/mole)=  0.94 mole
202 g pb /(207 g/mole)= 0.975 mole