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Text Details
 
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Gemeg y elfen ei bennu gan y modd y mae'n cyflawni ei electronau yn cael eu trefnu yn y atom. Trefniadau i'r o'r fath ar sail y dosbarthiad modern cyfnodol yr elfennau: y Tabl Cyfnodol.
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(book)
by Jack Barrett
| Language: | Welsh |
This text has been typed
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| Avg. accuracy: | 95.6% |