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Questions and Answers
What subatomic particle did J. Chadwick discover in 1932?
What subatomic particle did J. Chadwick discover in 1932?
- Positron
- Proton
- Neutron (correct)
- Electron
In which part of an atom are neutrons present?
In which part of an atom are neutrons present?
- Nucleus (correct)
- Electron cloud
- Proton
- Valence shell
How is the mass of an atom determined?
How is the mass of an atom determined?
- By summing the masses of protons and neutrons in the nucleus (correct)
- By counting the electrons in the atom
- By measuring the volume of the atom
- By calculating the energy levels of electrons
