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Description
Flashcards by alex.examtime9373, updated more than 1 year ago
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Created by alex.examtime9373
almost 11 years ago
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| Question | Answer |
| Structure of the atom | Negatively charged electrons orbiting a positively charged nucleus |
| Rutherfords gold foil experiment | There is a dense positive core at the centre of the atom around which the electrons orbit |
| Type of radiation used in Rutherford's experiment | Alpha radiation |
| Bohr model | The nucleus was composed of protons and neutrons packed tightly together; electrons spin around it in fixed orbits |
| Increase in electron ring radius corresponds with ... | Increase in energy level |
| When atoms gain energy | Electrons jump from a lower energy state to the next energy level |
| When electrons return to their original level | They emit a photon |
| Emission line spectra | Caused by photon emission |
| Spectrometer | Used to demonstrate line spectra |
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