Which of these has negligible mass?

Electrons

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Protons

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Neutrons

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All of the above

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Solution

The correct option is A
Electrons

Protons are positively charged particles present in an atom with one unit positive charge and one unit mass.

Electrons are negatively charged particles present in an atom with one unit negative charge and negligible mass.

Neutrons are particles present in an atom with no charge and one unit mass.

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