Which of the following statements about the electron is incorrect?

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Electrons revolve around the nucleus in discrete orbits

Electrons have a mass of approximately 9.11 x 10^-31 kg

The mass of electrons is equal to the mass of a neutron

It is a negatively charged particle

answer is B.

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Detailed Solution

An electron is a negatively charged particle.
The negative charge is equal to 1.602 × 10^-19 coulomb in magnitude.
Electrons revolve around the nucleus in discrete orbits
Electrons are much lighter than protons and neutrons and have a mass of approximately 9.11 x 10^-31 kg.
So the statement 'The mass of electrons is equal to the mass of neutron' is incorrect.

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