Rikunarita-ORG/Wikinium huggingface dataset:
# Magnesiwm

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| Magnesiwm

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| Magnesiwm mewn cynhwysydd |

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| Symbol | Mg |
|  Rhif | 12 |
| Dwysedd | 1.738 g/cm³ |
| Electronegatifedd
 | 1.31
 |

Magnesiwm|  |
| Enghraifft o: | elfen gemegol, lithophile  |
| Math | Elfen cyfnod 3, metel daear alcalïaidd  |
| Deunydd | magnesite, dolomite, brucite, carnallite, talc, olifin  |
| Màs | 24.305 ±0.002 uned Dalton  |
| Fformiwla gemegol | Mg  |
| Dyddiad darganfod | 1755  |
| Symbol | Mg  |
| Rhif atomig | 12  |
| Trefn yr electronnau | 1s² 2s² 2p⁶ 3s², [Ne] 3s²  |
| Electronegatifedd | 1  |
| Cyflwr ocsidiad | 1  |
| Rhan o | Elfen cyfnod 3, metel daear alcalïaidd  |
| Dynodwyr |
| SMILES | [mg]  |
| Freebase | /M/025s0s0  |
| Thesawrws y BNCF | 34769  |
| CAS | 7439-95-4  |
| PubChem CID | 5462224  |
| ChEBI | 25107  |
| InChI | Inchi=1s/mg  |
| ChemSpider | 4575328  |
| UNII | I38zp9992a  |
| Rhif EC | 231-104-6  |
| ECHA | 100.028.276  |
| RxNorm CUI | 6574  |
| UMLS CUI | C0024467  |
| NDF-RT | N0000146038  |
|  Ffeiliau perthnasol ar Gomin Wicimedia |

Elfen gemegol yw **magnesiwm** a gaiff ei gynrychioli gyda'r symbol `**Mg**` a'r rhif atomig 12 yn y tabl cyfnodol. Mae'r elfen yn fetel arian, caled gyda dwysedd isel o 1.738 g/cm³, felly defnyddir y metel fel rhan o nifer o aloïau ysgafn.

 *Eginyn erthygl sydd uchod am **gemeg**. Gallwch helpu Wicipedia drwy ychwanegu ato.*
# Silicon

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| Silicon

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| Silicon mewn cynhwysydd |

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| Symbol | Si |
|  Rhif | 14 |
| Dwysedd | 2.33 g/cm³ |

Elfen gemegol anfetelig pedwarfalent yw **silicon** gyda'r symbol **Si** a'r rhif atomig 14 yn y tabl cyfnodol. Antoine Lavoisier a ddarganfu silicon yn gyntaf, a hynny ym 1787. Elfen wythfed mwyaf cyffredin yn y bydysawd, ac ail fwyaf cyffredin yng nghrwst y ddaear (ar ôl ocsigen) ydyw. Mae'n perthyn i'r grŵp hwnnw a elwir yn fetelffurfiau.

Mae llawer o ddefnyddiau diwydiannol i silicon, yn enwedig i greu dyfeisiau electronig. Enwyd ardal enwog o ogledd Califfornia ar ei ôl, sef Dyffryn Silicon, o achos y diwydiant yno.

Wiciadur
Chwiliwch am silicon
yn Wiciadur.

 *Eginyn erthygl sydd uchod am **gemeg**. Gallwch helpu Wicipedia drwy ychwanegu ato.*
# Alwminiwm

Alwminiwm|  |
| Enghraifft o: | elfen gemegol, metel, lithophile  |
| Math | post-transition metal, defnydd adeiladu, meddyginiaeth, combustible powder, sylweddyn syml  |
| Deunydd | bauxite  |
| Màs | 26.9815384 ±3e-07 uned Dalton  |
| Dyddiad darganfod | 1825  |
| Symbol | Al  |
| Rhif atomig | 13  |
| Trefn yr electronnau | [Ne] 3s² 3p¹, 1s² 2s² 2p⁶ 3s² 3p¹  |
| Electronegatifedd | 1.61 ±0.01  |
| Cyflwr ocsidiad | 1.61 ±0.01  |
| Rhan o | Elfen cyfnod 3, Elfen Grŵp 13  |
| Dynodwyr |
| SMILES | [al]  |
| Freebase | /M/027vj2v  |
| Thesawrws y BNCF | 601  |
| CAS | 7429-90-5  |
| PubChem CID | 5359268  |
| ChEBI | 28984, 33629  |
| InChI | Inchi=1s/al  |
| ChemSpider | 4514248  |
| UNII | Cpd4nfa903, kzj3t010rq  |
| Rhif EC | 231-072-3  |
| Drugbank | Db01370  |
| ECHA | 100.028.248  |
| HMDB | Hmdb0001247  |
| RxNorm CUI | 1311504  |
|  Ffeiliau perthnasol ar Gomin Wicimedia |

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| Alwminiwm

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| Alwminiwm mewn cynhwysydd |

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| Symbol | Al |
|  Rhif | 13 |
| Dwysedd | 2.70 g/cm³ |

Elfen gemegol yw **alwminiwm** a gaiff ei chynrychioli gyda'r symbol `**Al**` a'r rhif atomig 13 yn y tabl cyfnodol. Mae'n aelod o'r grŵp Boron. Dyma'r metel mwyaf cyffredin yng nghrwst y Ddaear a'r drydedd elfen mwyaf cyffredin, ar ôl ocsigen a silicon.

Trefn yr electronau yw 2,8,3.

 *Eginyn erthygl sydd uchod am **gemeg**. Gallwch helpu Wicipedia drwy ychwanegu ato.*
# Sylffwr

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| Sylffwr

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| Sylffwr mewn cynhwysydd |

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| Symbol | S |
|  Rhif | 16 |
| Dwysedd | (alpha) 2.07 g·cm−3 (beta) 1.96 g·cm−3 (gamma) 1.92 g·cm−3 |

Sylffwr
Elfen gemegol yw **sylffwr** gyda'r symbol **S** a'r rhif atomig 16 yn y tabl cyfnodol.

 *Eginyn erthygl sydd uchod am **gemeg**. Gallwch helpu Wicipedia drwy ychwanegu ato.*
# Clorin

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| Clorin

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| Clorin mewn cynhwysydd |

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| Symbol | Cl |
|  Rhif | 17 |
| Dwysedd | 3.2 g/L |

Clorin|  |
| Enghraifft o: | elfen gemegol, cyffur hanfodol, lithophile  |
| Math | diatomic nonmetal, Halogen  |
| Màs | 35.45 ±0.01 uned Dalton  |
| Dyddiad darganfod | 1774  |
| Symbol | Cl  |
| Rhif atomig | 17  |
| Trefn yr electronnau | [Ne] 3s² 3p⁵, 1s² 2s² 2p⁶ 3s² 3p⁵  |
| Electronegatifedd | 3  |
| Cyflwr ocsidiad | 3  |
| Rhan o | Elfen cyfnod 3, Halogen  |
| Dynodwyr |
| Freebase | /M/025tkqp  |
| Thesawrws y BNCF | 792  |
| ChemSpider | 4514529  |
|  Ffeiliau perthnasol ar Gomin Wicimedia |

Elfen gemegol yw **clorin** gyda'r symbol Cl a'r rhif atomig 17 yn y tabl cyfnodol. Mae'r elfen yn bodoli ar ffurf moleciwlau deuatomig, Cl2, ac mae hwn yn ffurfio nwy gwyrdd o dan amodau safonol. Hwn yw tarddiad yr enw gan mai ystyr y gair a fathwyd yn 1810 gan Syr Humphry Davy a darddodd o'r Hen Roeg *χλωρóς* (khlôros) sef gwyrdd golau.

 *Eginyn erthygl sydd uchod am **gemeg**. Gallwch helpu Wicipedia drwy ychwanegu ato.*
# Calsiwm

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| Calsiwm

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| Calsiwm mewn cynhwysydd |

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| Symbol | Ca |
|  Rhif | 20 |
| Dwysedd | 1.55 g·cm−3 |

Calsiwm|  |
| Enghraifft o: | elfen gemegol, lithophile, active metal  |
| Math | metel daear alcalïaidd  |
| Màs | 40.078 ±0.004 uned Dalton  |
| Fformiwla gemegol | Ca  |
| Dyddiad darganfod | 1808  |
| Symbol | Ca  |
| Rhif atomig | 20  |
| Trefn yr electronnau | [Ar] 4s², 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²  |
| Electronegatifedd | 1  |
| Cyflwr ocsidiad | 1  |
| Rhan o | elfen cyfnod 4, metel daear alcalïaidd  |
| Dynodwyr |
| SMILES | [ca]  |
| Freebase | /M/025tkqy  |
| Thesawrws y BNCF | 8953  |
| CAS | 7440-70-2  |
| PubChem CID | 5460341  |
| ChEBI | 22984, 29320  |
| InChI | Inchi=1s/ca  |
| ChemSpider | 4573905  |
| UNII | Sy7q814vup  |
| Rhif EC | 231-179-5  |
| Drugbank | Db01373  |
| ECHA | 100.028.344  |
| RxNorm CUI | 1895  |
| UMLS CUI | C0006675  |
| NDF-RT | N0000146031  |
|  Ffeiliau perthnasol ar Gomin Wicimedia |

Mae **calsiwm** yn elfen gemegol yn y tabl cyfnodol sydd â'r symbol **Ca** a'r rhif atomig 20. Mae ganddo fàs atomig o 40.078. Mae Calsiwm yn fetel daear alcalïaidd meddal llwyd a'r metal bumed fwyaf digonol yng nghramen y ddaear. Mae'n angenrheidiol ar gyfer organebau byw, yn arbennig mewn ffisioleg celloedd, ac y metel mwyaf cyffredin mewn nifer o anifeiliaid. Gellir defnyddio Calsiwm fel rhydwythydd pan yn echdynnu Thoriwm, Sirconiwm a Wraniwm.

 *Eginyn erthygl sydd uchod am **gemeg**. Gallwch helpu Wicipedia drwy ychwanegu ato.*
# Scandiwm

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| Scandiwm

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| --- |
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| Scandiwm mewn cynhwysydd |

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| Symbol | Sc |
|  Rhif | 21 |
| Dwysedd | {{{dwysedd}}} |

Elfen gemegol yw **scandiwm** gyda'r symbol `**Sc**` a'r rhif atomig 21 yn y tabl cyfnodol.

 *Eginyn erthygl sydd uchod am **gemeg**. Gallwch helpu Wicipedia drwy ychwanegu ato.*

Wiciadur
Chwiliwch am scandiwm
yn Wiciadur.
# Titaniwm

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| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Titaniwm

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| --- |
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| Titaniwm mewn cynhwysydd |

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| Symbol | Ti |
|  Rhif | 22 |
| Dwysedd | 2.70 g/cm³ |

Elfen gemegol yw **titaniwm** gyda'r symbol `**Ti**` a'r rhif atomig 22 yn y tabl cyfnodol.

 *Eginyn erthygl sydd uchod am **gemeg**. Gallwch helpu Wicipedia drwy ychwanegu ato.*

Wiciadur
Chwiliwch am titaniwm
yn Wiciadur.
# Fanadiwm

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| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Fanadiwm

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| Fanadiwm mewn cynhwysydd |

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| Symbol | V |
|  Rhif | 23 |
| Dwysedd | {{{dwysedd}}} |

Elfen gemegol a metel yw **fanadiwm** gyda'r symbol `**V**` a'r rhif atomig 23 yn y tabl cyfnodol.

 *Eginyn erthygl sydd uchod am **gemeg**. Gallwch helpu Wicipedia drwy ychwanegu ato.*

Wiciadur
Chwiliwch am fanadiwm
yn Wiciadur.
# Cromiwm

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| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Cromiwm

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| Cromiwm mewn cynhwysydd |

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| Symbol | Cr |
|  Rhif | 24 |
| Dwysedd | {{{dwysedd}}} |

Elfen gemegol yw **cromiwm** gyda'r symbol `**Cr**` a'r rhif atomig 24 yn y tabl cyfnodol.

 *Eginyn erthygl sydd uchod am **gemeg**. Gallwch helpu Wicipedia drwy ychwanegu ato.*

Wiciadur
Chwiliwch am cromiwm
yn Wiciadur.