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Questions and Answers
Which particle has a charge of +1?
Which particle has a charge of +1?
- Electron
- Proton (correct)
- Neutron
- All of the above
What is the relative mass of a neutron based on the mass of an electron?
What is the relative mass of a neutron based on the mass of an electron?
- 1839 (correct)
- 1837
- 1
- 1840
Which of the following actual mass values is correct for an electron?
Which of the following actual mass values is correct for an electron?
- 0 g
- 1.675 x 10^-24 g
- 1.673 x 10^-24 g
- 9.109 x 10^-28 g (correct)
Which particle has no charge?
Which particle has no charge?
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Which particle has a mass approximately 1837 times that of an electron?
Which particle has a mass approximately 1837 times that of an electron?
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Study Notes
Internal Structure of an Atom
- Atoms comprise three primary subatomic particles: electrons, protons, and neutrons.
Charge Characteristics
- Electrons carry a negative charge of -1.
- Protons possess a positive charge of +1.
- Neutrons have no charge, which is represented as 0.
Mass Characteristics
- The actual mass of an electron is approximately 9.109 x 10^-28 grams.
- The actual mass of a proton is around 1.673 x 10^-24 grams.
- The actual mass of a neutron is roughly 1.675 x 10^-24 grams.
Relative Mass
- The relative mass of an electron is defined as 1 unit.
- In comparison, a proton has a relative mass of 1837 units, making it significantly heavier than an electron.
- A neutron has a similar relative mass to the proton at 1839 units, indicating that both protons and neutrons are much more massive than electrons.
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