Question

Question 3(ii)
Express the number appearing in the following statements in standard form:
Charge of an electron is 0.000,000,000,000,000,00016 coulomb.

Answer 1

Charge of an electron is 0.00000000000000000016 coulomb
$=0.00000000000000000016\times \frac{{10}^{19}}{{10}^{19}}=1.6\times {10}^{-19}coulomb[\because a^{-m}=\frac{1}{a^m}]$