# Senon

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| Senon

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| Senon mewn cynhwysydd |

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| Symbol | Xe |
|  Rhif | 54 |
| Dwysedd | 5.894 g/L |

Senon|  |
| Enghraifft o: | elfen gemegol, nwy, atmophile element  |
| Math | Elfen cyfnod 5  |
| Màs | 131.293 ±0.006 uned Dalton  |
| Fformiwla gemegol | Xe  |
| Dyddiad darganfod | 12 Gorffennaf 1898  |
| Symbol | Xe  |
| Rhif atomig | 54  |
| Trefn yr electronnau | 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶, [Kr] 5s² 4d¹⁰ 5p⁶  |
| Electronegatifedd | 2.6  |
| Cyflwr ocsidiad | 2.6  |
| Rhan o | Elfen cyfnod 5, Nwy nobl  |
| Dynodwyr |
| SMILES | [xe]  |
| Freebase | /M/025sqqf  |
| Thesawrws y BNCF | 38976  |
| CAS | 7440-63-3  |
| PubChem CID | 23991  |
| ChEBI | 49957, 49956  |
| InChI | Inchi=1s/xe  |
| ChEMBL | Chembl1236802  |
| ChemSpider | 22427  |
| UNII | 3h3u766w84  |
| Rhif EC | 231-172-7  |
| Drugbank | Db13453  |
| ECHA | 100.028.338  |
| PDB | 1c6e, 1c6h, 1o75, 1kqn, 3mou, 3lzy, 1l0z, 1uo6, 1e9v, 2ic0, 4pwb, 1i4w, 3tf1, 3tf9, 3tfe, 3tfa, 1nxt, 1uoc, 2fic, 5c2w, 2b2j, 2w6x, 2xkh, 3fgr, 2ie6, 1u0x, 1l1g, 3fbx, 4o4t, 3ple, 3plg, 3pli, 3plh, 3plj, 3plm, 1c6t, 1c6b, 1c6n, 1c6k, 1c65, 1c62, 4nxa, 4wn9, 4l78, 1k4k, 2w6y, 1fo6, 3c9i, 2w72, 1lls, 2w6w, 2w6v, 1fzi, 1fzh, 3pjk, 3fz6, 1uyu, 3cyu, 1s56, 1ury, 2a7b, 2a7c, 2a7a, 2a7d, 3gln, 1vau, 1rjo, 1w53, 1vgi, 2w0q, 2oqe, 2oqu, 3pkf, 3pkg, 3pk4, 3pk5, 3pk6, 2zfe, 5bu8, 3u52, 1w2z, 1gkz, 1c3l, 3m3d, 2a9r, 1j52, 3pkk, 3qpk, 1rky, 3s33, 3s39, 3s38, 3s3c, 3s3b, 3s3a, 3s3d, 4nwh, 1uvx, 1uvy, 1c1m, 3zjs, 3zjr, 3pkl, 3pkh, 4guv, 4mgh, 3ls7, 4wna, 1c68, 1zdm, 2dki, 1ux9, 3g46, 4zzb, 4zzc, 3bvd, 3s23, 3gk9, 4ylh, 5a6v, 2z8y, 2z8a, 1c10, 3ord  |
| RxNorm CUI | 11363  |
| UMLS CUI | C0043339  |
| NDF-RT | N0000147400  |
|  Ffeiliau perthnasol ar Gomin Wicimedia |

Un o elfennau Grwp VIII yw **senon** â'r symbol `**Xe**`. Nid yw'n adweithiol.

## Defnydd

Mae profion wedi dangos fod Senon yn gweithio'n dda fel anasthetig cyffredinol, heb unrhyw nodweddion negyddol yn sgil ei ddefnydd. Yr anfantais yw ei fod yn ddrud.

Defnyddir Senon i wneud bylbiau golau mewn goleudai yn ogsytal. Mae'r golau yn un llachar gwyn gyda mymryn o las.

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