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Elfen gemegol yw ïodin gyda'r symbol I
a'r rhif atomig 53 yn y tabl cyfnodol.
Mae'r ïodin yng ngrŵp yr Halogenau.
Enghraifft o'r canlynol | elfen gemegol, lithophile |
---|---|
Math | Elfen cyfnod 5, Anfetel, Halogen, diatomic nonmetal |
Màs | 126.90447 ±3e-05 uned Dalton |
Dyddiad darganfod | 1811 |
Symbol | I |
Rhif atomig | 53 |
Electronegatifedd | 3 |
Cyflwr ocsidiad | 3 |
Rhan o | Elfen cyfnod 5, Halogen |
Ffeiliau perthnasol ar Gomin Wicimedia |
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