Question

The mass of an electric electron is 9.11×10^-31kg. How many electrons would make 1kg ?


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Answer 1

check this attachment

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Answer 2

Answer:

Hi

If mass of an electron is 9.11 X 10^-31 kg = 9.11 X10^-28

1 kg = 1000 g

Electrons would in one kg = 1000 / 9.11 X 10^-31

= ( 1000 / 9.11 ) X 10^-28

= 109.76 X 10^28

= 1.0976 X 10 ^30

=10^30(approximate )

so there is no of electron in one kilogram

thanks for asking