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Chp 3 Definitions
Chemistry Leaving cert Chapter 3 definitions only
| Question | Answer |
|---|---|
| Energy Levels | The fixed energy value that an electron in an atom may have. |
| Ground State | Lowest available of energy that an electron can occupy. |
| Excited State | Where an electron can occupy a higher energy in an electron. This state of energy is higher than ground state. |
| Heisenberg's Uncertainty Principle | States that it is impossible to measure at the same time both the velocity and position of an electron. |
| Orbital | A region in a space within which there is a high probability of finding an electron. |
| Sublevel | A subdivision of the main energy level and consists of one or more orbitals of the same energy. |