The massive of one electron is 9.109 × 10-31lkilograms, while the fixed of a proton is 1.673×10-27lkilograms.

You are watching: How many electrons would it take to equal the mass of a proton?

1) collection up a dimensional analysis.

2) notice that the kilograms the the proton and also electrons publication out.

3) carry out the mathematics (1.673×10-27 divided by 9.109×10-31)

4) You"re left v the quantity of electrons over 1 proton.

1 electron 1.673×10-27 kg

----------------- x ----------------- = 0.18366 x104 =1836.6 ~1837 electrons equal the fixed of a proton.

9.109×10-31kg 1 proton

Answer: around 1837 electrons will equal the fixed of a proton.

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