Tantalum — Ta
The chemical element Tantalum is an element of type Transition metal with the symbol Ta. It has an atomic mass of 180.94788 u and an electronic configuration of [Xe] 4f14 5d3 6s2.
Synthétique
Radioactif
Liquide
Gaz
5425°
2
3
4
5
8
18
32
11
2
- Atomic number
- 73
- Atomic mass
- 180.94788
- Symbol
- Ta
- Melting point
- 2996
- Boiling point
- 5425
- Density
- 16.654
- Period
- 6
- Group
- 5
- Discovery
- 1801 Ekeberg
- Abundance
- 2
- Radius
- 2.1
- Electronegativity
- 1.5
- Ionization
- 7.5496
- Isotope
- 19
- Electronic configuration
- [Xe] 4f14 5d3 6s2
- Oxidation state
- -1,2,3,4,5
- Electron
- 2,8,18,32,11,2
Minerals containing Tantalum
| first name | Hardness | Density | Chemical formula |
|---|---|---|---|
| Achalaite | — | 0.00 | (Fe2+,Mn)(Ti,Fe3+,Ta)(Nb,Ta)2O8 |
| Alumotantite | — | 7.00 | AlTaO4 |
| Bariomicrolite | — | 5.68 | (Ba, )2Ta2(O,OH)7 |
| Béhierite | — | 7.81 | TaBO4 |
| Bismutocolumbite | — | 7.56 | BiNbO4 |
| Bismutomicrolite | — | 6.83 | (Bi,Ca)2Ta2(O,OH)7 |
| Bismutopyrochlore | — | 4.97 | (Bi,U,Ca,Pb)1+xNb2O6(OH)·nH2O |
| Bismutotantalite | — | 8.51 | BiTaO4 |
| Burovaite-Ca | — | 2.73 | (Na,K)4Ca2(Ti,Nb)8[Si4O12]4(OH,O)8·12H2O |
| Calciosamarskite | — | 4.48 | (Ca,Fe,Y)(Nb,Ta,Ti)O4 |
| Calciotantite | — | 7.46 | CaTa4O11 |
| Ceriopyrochlore-(Ce) | — | 4.13 | (Ca,Ce,Y,Na)2Nb2(O,OH,F)7 |
| Cesplumtantite | — | 6.00 | Cs2Pb3Ta8O24 |
| Columbite-(Mg) | — | 5.04 | MgNb2O6 |
| Columbite-(Mn) | — | 5.28 | Mn2+Nb2O6 |
| Euxenite-(Y) | — | 4.70 | (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 |
| Eveslogite | — | 2.85 | (Ca,K,Na,Sr,Ba)48(Ti,Nb,Fe,Mn)12(OH)12Si48O144(OH,F,Cl)14 |
| Ferrokentbrooksite | — | 3.06 | Na15Ca6Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(F,Cl)2 |
| Ferrotitanowodginite | — | 0.00 | Fe2+TiTa2O8 |
| Ferrowodginite | — | 7.00 | Fe2+Sn4+Ta2O8 |
| Fersmite | — | 4.69 | (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 |
| Fluorcalciomicrolite | — | 6.16 | (Ca,Na)2Ta2O6F |
| Fluornatromicrolite | — | 6.49 | (Na1.5Bi0.5)Ta2O6F |
| Foordite | — | 6.73 | Sn2+Nb2O6 |
| Formanite-(Y) | — | 7.03 | YTaO4 |
| Heftetjernite | — | 0.00 | ScTaO4 |
| Holtite | — | 3.60 | (Ta0.60.4)Al6BSi3O18 |
| Hydrokenomicrolite | — | 6.67 | (H2O)2Ta2(O,OH)6(H2O) |
| Hydroxycalciomicrolite | — | 6.18 | Ca1.5Ta2O6(OH) |
| Hydroxykenomicrolite | — | 0.00 | (Na,Sb3+)2Ta2O6(OH) |
| Irtyshite | — | 7.03 | Na2Ta4O11 |
| Ishikawaite | — | 6.20 | (U,Fe,Y)NbO4 |
| Iwashiroite-(Y) | — | 7.10 | YTaO4 |
| Ixiolite | — | 6.94 | (Ta,Mn,Nb)O2 |
| Jedwabite | — | 8.60 | Fe7Ta3 |
| Johnwalkite | — | 3.40 | K(Mn2+,Fe3+)2(Nb,Ta)O2(PO4)2·2(H2O,OH) |
| Kimrobinsonite | — | 6.00 | Ta(OH)3(O,CO3) |
| Koragoite | — | 4.70 | Mn2+2Mn3+Nb2(Nb,Ta)3W2O20 |
| Lakargiite | — | 4.59 | CaZrO3 |
| Liandratite | — | 6.80 | U6+Nb2O8 |
| Lithiotantite | — | 7.00 | LiTa3O8 |
| Lithiowodginite | — | 7.50 | LiTa3O8 |
| Loranskite-(Y) | — | 4.40 | (Y,Ce,Ca)(Zr,Ta)2O6 |
| Makarochkinite | — | 3.93 | Ca2Fe2+4Fe3+TiSi4BeAlO20 |
| Marianoite | — | 3.32 | Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4 |
| Menezesite | — | 4.18 | Ba3MgZr4Nb12O42·12H2O |
| Microlite | — | 4.20 | (Ca,Na)2Ta2(O,OH,F)7 |
| Nalivkinite | — | 3.29 | Li2NaFe2+7Ti2(Si4O12)2O2(OH)4F |
| Natrobistantite | — | 6.10 | NaBi(Ta,Nb,Sb)4(O,OH)12 |
| Natrotantite | — | 7.71 | Na2Ta4O11 |
| Nioboaeschynite-(Y) | — | 5.34 | (Y,REE,Ca,Th,Fe)(Nb,Ti,Ta)2(O,OH)6 |
| Niobocarbide | — | 10.25 | NbC |
| Olmsteadite | — | 3.31 | KFe2+2NbO2(PO4)2·2H2O |
| Oxynatromicrolite | — | 6.51 | (Na,Ca,U)2(Ta,Nb)2O6(O,F) |
| Oxystannomicrolite | — | 0.00 | Sn2Ta2O6O |
| Oxystibiomicrolite | — | 0.00 | (Sb3+,Ca)2Ta2O6O |
| Parabariomicrolite | — | 5.97 | BaTa4O10(OH)2·2H2O |
| Petscheckite | — | 5.50 | U4+Fe2+Nb2O8 |
| Písekite-(Y) | — | 4.03 | (Y,As,Ca,Fe,U)(Nb,Ti,Ta)O4 |
| Plumbomicrolite | — | 6.60 | (Pb,Na,Ca)2Ta2(O,OH)7 |
| Plumbopyrochlore | — | 5.04 | (Pb,Y,U,Ca)2Nb2(O,OH)7 |
| Polycrase-(Y) | — | 4.97 | Y(Ti,Nb)2(O,OH)6 |
| Rankamaite | — | 5.50 | (Na,K,Pb)(Ta,Nb,Al)4(O,OH)10 |
| Rossovskyite | — | 6.30 | (Fe3+,Ta)(Nb,Ti)O4 |
| Rynersonite | — | 6.40 | CaTa2O6 |
| Samarskite-(Y) | — | 5.60 | (Y,Ce,U,Fe,Nb)(Nb,Ta,Ti)O4 |
| Samarskite-(Yb) | — | 7.03 | YbNbO4 |
| Schiavinatoite | — | 6.55 | NbBO4 |
| Simpsonite | — | 6.70 | Al4Ta3O13(OH) |
| Sosedkoite | — | 6.90 | K5Al2Ta22O60 |
| Stibiotantalite | — | 6.00 | Sb3+TaO4 |
| Takanawaite-(Y) | — | 6.97 | YTaO4 |
| Tantalaeschynite-(Y) | — | 5.75 | Y(Ta,Ti,Nb)2O6 |
| Tantalcarbide | — | 14.50 | TaC |
| Tantalite-(Fe) | — | 8.20 | Fe2+Ta2O6 |
| Tantalite-(Mg) | — | 6.70 | MgTa2O6 |
| Tantalite-(Mn) | — | 8.10 | Mn2+Ta2O6 |
| Tanteuxenite-(Y) | — | 5.40 | Y(Ta,Nb,Ti)2(O,OH)6 |
| Tantite | — | 8.45 | Ta2O5 |
| Tapiolite-(Fe) | — | 7.82 | Fe2+Ta2O6 |
| Tapiolite-(Mn) | — | 7.72 | Mn2+Ta2O6 |
| Taseqite | — | 3.24 | Na12Sr3Ca6Fe3Zr3NbSi25O73(O,OH,H2O)3Cl2 |
| Thoreaulite | — | 7.60 | Sn2+Ta2O6 |
| Titanowodginite | — | 6.86 | Mn2+TiTa2O8 |
| Uranmicrolite | — | 5.75 | (U,Ca,Ce)2Ta2(O,OH,F)7 |
| Uranopolycrase | — | 5.50 | (U,Y)(Ti,Nb,Ta)2(O,OH)6 |
| Uranpyrochlore | — | 4.80 | (Ca,U,Na,Ce)2Nb2(O,OH,F)7 |
| Vigezzite | — | 5.54 | (Ca,Ce)(Nb,Ta,Ti)2O6 |
| Wodginite | — | 7.19 | Mn2+Sn4+Ta2O8 |
| Yttrobetafite-(Y) | — | 3.65 | (Y,U,Ce)2(Ti,Nb,Ta)2(O,OH)7 |
| Yttrocolumbite-(Y) | — | 5.70 | (Y,U,Fe2+)(Nb,Ta)O4 |
| Yttropyrochlore-(Y) | — | 3.60 | (Y,Na,Ca)2Nb2(O,OH)7 |
| Yttrotantalite-(Y) | — | 5.50 | (Y,U,Fe2+)(Ta,Nb)2(O,OH)4 |
| Zabinskiite | — | 3.90 | Ca[Al0.5(Ta,Nb)0.5](SiO4)O |
| Zimbabweite | — | 6.20 | Na(Pb,Na,K)2(Ta,Nb,Ti)4As4O18 |