Question

q=4.0*10^-9 e=-1.6*10^-19 Find n Help.. It's urgent..

Answer 1

Answer:

n=2.5×10¹⁰

Explanation:

q=ne

4×10⁻⁹=n×1.6×10⁻¹⁹

4×10⁻⁹/1.6×10⁻¹⁹=n

4×10¹⁰/1.6=n

n=40×10¹⁰/16

n=2.5×10¹⁰