The mass of an electron is approximately 9 × 10-28 grams, while the mass of a neutron is approximately 2 × 10-24 grams. Which of
the following is true?
The mass of a neutron is approximately 2,000 times the mass of an electron.
The mass of a neutron is approximately 10,000 times the mass of an electron.
The mass of a neutron is approximately 20,000 times the mass of an electron.
The mass of a neutron is approximately 1,000 times the mass of an electron.
1 answer:
We simply divide the Mass of Neutron by Mass of electron
= 2 × 10⁻²⁴ / (9 × 10⁻²⁸)
= (2/9) × 10⁻²⁴ ⁻ ⁻²⁸
= (2/9) × 10⁻²⁴ ⁺ ²⁸
≈ 0.2222... × 10²⁸ ⁻ ²⁴
≈ 0.2222 × 10⁴
≈ 2222
This is approximately 2000 times.
So:
The mass of a neutron is approximately 2,000 times the mass of an electron
The first option. I hope this explains it.
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