Question

The mass of an electron is 9.11×10 power -28 g. How many electron would make 1 kg ?​

Answer 1

Explanation:

mass of electron = 9.11 × 10-³¹ Kg

Let number of electron in 1 Kg .

n = 1/9.11 × 10-³¹

n ={ 10/9.11} × 10^30

n = 1.097 × 10^30