Physics
The mass of an electron is :
- 1.6725 x 10-27
- 1.6725 x 10-31
- 1.6748 x 10-31
- 9.1 x 10-31
Radioactivity
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Answer
9.1 x 10-31
Reason — The mass of an electron is 9.1 x 10-31.
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