To find out how many electrons it takes to equal the mass of a dust particle, we can divide the mass of the dust particle by the mass of a single electron:
(7.5 x 10^-10 kg) / (9.1 x 10^-31 kg)
= (7.5 / 9.1) x 10^(10-(-31))
= 0.824 x 10^41
= 8.24 x 10^40
Therefore, it would take approximately 8.24 x 10^40 electrons to equal the mass of a dust particle.
The mass of a dust particle is approximately 7.5 × 10^−10 kilograms and the mass of an electron is 9.1 × 10^−31 kilograms. How many electrons does it take to equal the mass of a dust particle?
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