Question

A student weighs 27.3 kg. Suppose his entire body is made up of

electrons. How many electrons are there in his body​

Answer 1

Answer:

mass of 1 electron = 9.1 x 10^(-31) kg

Explanation:

mass of 1 electron = 9.1 x 10^(-31) kg

hence, no. electrons = weight of the body/ mass of 1 electron

therefore, 27.3/ 9.1 x 10^(-31) kg

total no. electrons in his body = 3 x 10^(+) 31 kg

(which means 31 zeros after 3)

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