Physics · Atomic Structure
What is the approximate mass of an electron?
- 19.11 × 10⁻³¹ kg✓
- 21.67 × 10⁻²⁷ kg
- 39.11 × 10⁻²⁷ kg
- 41.67 × 10⁻³¹ kg
Correct answer
9.11 × 10⁻³¹ kg
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