Which is the most reasonable estimate of the mass of an electron?

  1. 9.1 10^-31 kg
  2. 1.67 10^-27 kg
  3. 9.1 10^-41 kg
  4. 9.1 10^-21 kg
Answer

A) 9.1 10^-31 kg

A sensible order of magnitude for the mass of an electron is 9.1 10^-31 kg. SLO P-11-A-01 · Understanding

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