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4 Cards in this Set
- Front
- Back
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Ionisation |
e- gains enough energy to leave atom |
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De-excitation |
when an atom loses energy (by photoemission) so an e- inside atoms moves from an outer ---> inner e- shell |
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Excitation |
When an atom absorbs energy WITHOUT becoming ionised. An e- inside atom moves from an inner ----> outer e- shell |
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ground state |
lowest energy state of an atom |
