Selenium — Se
The chemical element Selenium is an element of type Other no metal with the symbol Se. It has an atomic mass of 78.971 u and an electronic configuration of [Ar] 3d10 4s2 4p4.
Synthétique
Radioactif
Liquide
Gaz
- Atomic number
- 34
- Atomic mass
- 78.971
- Symbol
- Se
- Melting point
- 217
- Boiling point
- 685
- Density
- 4.809
- Period
- 4
- Group
- 16
- Discovery
- 1817 Berzelius
- Abundance
- 0.05
- Radius
- 1.2
- Electronegativity
- 2.55
- Ionization
- 9.7524
- Isotope
- 20
- Electronic configuration
- [Ar] 3d10 4s2 4p4
- Oxidation state
- -2,2,4,6
- Electron
- 2,8,18,6
Minerals containing Selenium
| first name | Hardness | Density | Chemical formula |
|---|---|---|---|
| Abramovite | — | 0.00 | Pb2SnInBiS7 |
| Achávalite | — | 6.53 | FeSe |
| Aguilarite | — | 7.40 | Ag4SeS |
| Ahlfeldite | — | 3.37 | NiSeO3·2H2O |
| Alfredopetrovite | — | 2.50 | Al2(Se4+O3)3·6H2O |
| Allochalcoselite | — | 4.65 | Cu1+Cu2+5PbO2(SeO3)2Cl5 |
| Antimonselite | — | 5.88 | Sb2Se3 |
| Athabascaite | — | 6.00 | Cu5Se4 |
| Babkinite | — | 8.09 | Pb2Bi2(S,Se)3 |
| Bambollaite | — | 5.64 | Cu(Se,Te)2 |
| Bellidoite | — | 7.03 | Cu2Se |
| Berzelianite | — | 6.70 | Cu2-xSe (x~0.12) |
| Bohdanowiczite | — | 7.87 | AgBiSe2 |
| Bornhardtite | — | 0.00 | Co2+Co3+2Se4 |
| Brodtkorbite | — | 7.77 | Cu2HgSe2 |
| Bukovite | — | 7.36 | Cu4Tl2Se4 |
| Burnsite | — | 0.00 | KCdCu7O2(SeO3)2Cl9 |
| Cadmoselite | — | 5.66 | CdSe |
| Carlosruizite | — | 3.42 | K3Na2Na3Mg5(IO3)6(SeO4)6·6H2O |
| Chalcomenite | — | 3.31 | CuSe4+O3·2H2O |
| Chaméanite | — | 6.17 | (Cu,Fe)4As(Se,S)4 |
| Chloromenite | — | 0.00 | Cu9O2(Se4+O3)4Cl6 |
| Chrisstanleyite | — | 8.31 | Ag2Pd3Se4 |
| Clausthalite | — | 7.60 | PbSe |
| Clinochalcomenite | — | 3.28 | CuSe4+O3·2H2O |
| Cobaltomenite | — | 3.39 | CoSe4+O3·2H2O |
| Crerarite | — | 7.00 | (Pt,Pb)Bi3(S,Se)4-x (x= 0.4-0.8) |
| Crookesite | — | 6.90 | Cu7TlSe4 |
| Cupromakovickyite | — | 6.78 | Cu4AgPb2Bi9S18 |
| Demesmaekerite | — | 5.28 | Pb2Cu5(UO2)2(Se4+O3)6(OH)6·2H2O |
| Derriksite | — | 4.72 | Cu4(UO2)(Se4+O3)2(OH)6 |
| Downeyite | — | 4.15 | SeO2 |
| Drysdallite | — | 6.25 | MoSe2 |
| Dzharkenite | — | 7.34 | FeSe2 |
| Eldragónite | — | 0.00 | Cu6BiSe4(Se2) |
| Eskebornite | — | 5.35 | CuFeSe2 |
| Eucairite | — | 7.60 | CuAgSe |
| Favreauite | — | 4.85 | PbBiCu6O4(SeO3)4(OH)·H2O |
| Ferroselite | — | 7.21 | FeSe2 |
| Fischesserite | — | 9.05 | Ag3AuSe2 |
| Francisite | — | 5.00 | Cu3Bi(Se4+O3)2O2Cl |
| Freboldite | — | 7.00 | CoSe |
| Geffroyite | — | 5.39 | (Cu,Fe,Ag)9Se8 |
| Georgbokiite | — | 0.00 | Cu5O2(Se4+O3)2Cl2 |
| Giraudite | — | 5.75 | Cu6[Cu4(Fe,Zn)2]As4Se13 |
| Grundmannite | — | 6.58 | CuBiSe2 |
| Guanajuatite | — | 6.25 | Bi2Se3 |
| Guilleminite | — | 4.88 | Ba(UO2)3(Se4+O3)2O2·3H2O |
| Hakite | — | 6.30 | Cu10Hg2Sb4Se13 |
| Hansblockite | — | 0.00 | (Cu,Hg)(Bi,Pb)Se2 |
| Hastite | — | 7.22 | CoSe2 |
| Haynesite | — | 4.10 | (UO2)3(Se4+O3)2(OH)2·5H2O |
| Ikunolite | — | 7.80 | Bi4S3 |
| Ilinskite | — | 4.08 | NaCu5O2(Se4+O3)2Cl3 |
| Jacutingaite | — | 0.00 | Pt2HgSe3 |
| Jagüéite | — | 8.01 | Cu2Pd3Se4 |
| Jolliffeite | — | 7.10 | NiAsSe |
| Jonassonite | — | 0.00 | Au(Bi,Pb)5S4 |
| Junoite | — | 6.77 | Cu2Pb3Bi8S16 |
| Kalungaite | — | 7.59 | PdAsSe |
| Kawazulite | — | 7.79 | Bi2Te2Se |
| Kitkaite | — | 7.19 | NiTeSe |
| Klockmannite | — | 5.99 | Cu5.2Se6 |
| Krut'aite | — | 6.00 | CuSe2 |
| Kudriavite | — | 6.58 | (Cd,Pb)Bi2S4 |
| Kullerudite | — | 6.72 | NiSe2 |
| Kurilite | — | 0.00 | Ag8Te3Se |
| Laitakarite | — | 8.12 | Bi4Se3 |
| Laphamite | — | 4.50 | As2Se3 |
| Larisaite | — | 0.00 | Na(H3O)(UO2)3(Se4+O3)2O2·4H2O |
| Litochlebite | — | 7.90 | Ag2PbBi4Se8 |
| Luberoite | — | 13.02 | Pt5Se4 |
| Mäkinenite | — | 7.00 | NiSe |
| Mandarinoite | — | 2.93 | Fe3+2(Se4+O3)3·6H2O |
| Marthozite | — | 4.44 | Cu2+(UO2)3(Se4+O3)2O2·8H2O |
| Mgriite | — | 4.00 | (Cu,Fe)3AsSe3 |
| Miessiite | — | 10.94 | Pd11Te2Se2 |
| Milotaite | — | 7.95 | PdSbSe |
| Molybdomenite | — | 7.07 | PbSe4+O3 |
| Mozgovaite | — | 0.00 | PbBi4(S,Se)7 |
| Munakataite | — | 5.53 | Pb2Cu2(Se4+O3)SO4(OH)4 |
| Mutnovskite | — | 6.18 | Pb2AsS3I |
| Naumannite | — | 6.50 | Ag2Se |
| Nestolaite | — | 3.16 | CaSeO3·H2O |
| Nevskite | — | 7.00 | Bi(Se,S) |
| Nicksobolevite | — | 4.18 | Cu7(SeO3)2O2Cl6 |
| Nordströmite | — | 7.00 | Pb3CuBi7S14 |
| Olsacherite | — | 6.55 | Pb2(Se6+O4)(SO4) |
| Oosterboschite | — | 8.48 | (Pd,Cu)7Se5 |
| Orlandiite | — | 0.00 | Pb3Cl4(Se4+O3)·H2O |
| Padmaite | — | 9.00 | PdBiSe |
| Palladseite | — | 8.30 | Pd17Se15 |
| Parageorgbokiite | — | 4.70 | Cu5O2(SeO3)2Cl2 |
| Paraguanajuatite | — | 6.60 | Bi2Se3 |
| Pauladamsite | — | 3.54 | Cu4(SeO3)(SO4)(OH)4·2H2O |
| Pekoite | — | 6.00 | CuPbBi11S18 |
| Penroseite | — | 6.58 | NiSe2 |
| Penzhinite | — | 8.00 | (Ag,Cu)4Au(S,Se)4 |
| Permingeatite | — | 5.00 | Cu3SbSe4 |
| Petrícekite | — | 0.00 | CuSe2 |
| Petrovicite | — | 7.71 | Cu3HgPbBiSe5 |
| Petrovskaite | — | 9.50 | AuAgS |
| Piretite | — | 4.00 | Ca(UO2)3(Se4+O3)2(OH)4·4H2O |
| Pizgrischite | — | 0.00 | (Cu,Fe)Cu14PbBi17S34 |
| Plumboselite | — | 7.81 | Pb3O2(SeO3) |
| Poubaite | — | 7.00 | PbBi2(Se,Te,S)4 |
| Prewittite | — | 3.89 | KPb1.5ZnCu6O2(SeO3)2Cl10 |
| Príbramite | — | 0.00 | CuSbSe2 |
| Proudite | — | 7.12 | Cu2Pb16Bi20(S,Se)47 |
| Sabatierite | — | 6.00 | Cu6TlSe4 |
| Sarrabusite | — | 6.01 | Pb5Cu(SeO3)4Cl4 |
| Schlemaite | — | 7.54 | (Cu)6(Pb,Bi)Se4 |
| Schmiederite | — | 5.60 | Cu2Pb2(Se4+O3)(Se6+O4)(OH)4 |
| Sederholmite | — | 7.00 | NiSe |
| Selenium | — | 4.81 | Se |
| Selenojalpaite | — | 7.64 | Ag3CuSe2 |
| Selenopolybasite | — | 0.00 | Cu(Ag,Cu)6Ag9Sb2(S,Se)9Se2 |
| Selenostephanite | — | 7.00 | Ag5Sb(Se,S)4 |
| Skippenite | — | 7.00 | Bi2Se2Te |
| Sofiite | — | 3.00 | Zn2(Se4+O3)Cl2 |
| Soucekite | — | 7.60 | CuPbBi(S,Se)3 |
| Stilleite | — | 5.42 | ZnSe |
| Sudovikovite | — | 9.63 | PtSe2 |
| Telluronevskite | — | 8.10 | Bi3TeSe2 |
| Tiemannite | — | 8.19 | HgSe |
| Tischendorfite | — | 9.13 | Pd8Hg3Se9 |
| Trogtalite | — | 7.00 | CoSe2 |
| Trüstedtite | — | 6.00 | Ni3Se4 |
| Tsnigriite | — | 7.38 | Ag9SbTe3S3 |
| Tyrrellite | — | 6.00 | (Co,Cu,Ni)3Se4 |
| Umangite | — | 5.62 | Cu3Se2 |
| Verbeekite | — | 7.21 | PdSe2 |
| Vihorlatite | — | 8.00 | Bi24Se17Te4 |
| Vurroite | — | 6.15 | Pb20Sn2(Bi,As)22S54Cl6 |
| Watkinsonite | — | 7.00 | PbCu2Bi4Se8 |
| Weibullite | — | 6.97 | Ag0.3Pb5.3Bi8.3(S,Se)18 |
| Wilkmanite | — | 6.00 | Ni3Se4 |
| Wittite | — | 7.12 | Pb8Bi10(S,Se)23 |
| Zincomenite | — | 4.76 | ZnSeO3 |