Question

suppose your weight is 35 kg and your entire body is made up of the electron. Calculate the number of electron in our body

Answer 1

Mass of 1 electron is 1.6×10^-31 kg.
Mass of person is 35 kg.
Therefore no of electrons are 35divideby 1.6×10^-31. i.e. 2.1888× 10^32 electrons