The mass of an electron is:
Correct answer: C. 0.000550 amu
- A. 1.008 amu
- B. 1.009 amu
- C. 0.000550 amu
- D. 0.5500 amu
Explanation
The mass of an electron is approximately 0.000550 amu, which is much smaller compared to the masses of protons and neutrons (approximately 1 amu each). This small mass is due to the electron's relatively lower contribution to the overall mass of an atom. The incorrect options suggest masses closer to those of protons and neutrons, highlighting the importance of distinguishing between the masses of different subatomic particles.
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