Answer:
% of mass of electrons in C = 0.0272
Explanation:
Atomic no. of carbon = 6
So, no. of electron = 6
Mass of an electron = [tex]\frac{1}{1836} amu[/tex]
Mass of 6 electrons = [tex]6 \times \frac{1}{1836} = 0.003268 amu[/tex]
Mass of C = 12.0107 u
% of mass of electrons in C = [tex]\frac{Mass\ of\ all\ electrons}{Mass\ of\ C}\times 100[/tex]
% of mass of electrons in C = [tex]\frac{0.003268}{12.0107}\times 100=0.0272 \%[/tex]