praseodymium — Pr
The chemical element praseodymium is an element of type Metal lanthanides with the symbol Pr. It has an atomic mass of 140.90766 u and an electronic configuration of [Xe] 4f3 6s2.
Synthétique
Radioactif
Liquide
Gaz
3212°
3
4
8
18
21
8
2
- Atomic number
- 59
- Atomic mass
- 140.90766
- Symbol
- Pr
- Melting point
- 931
- Boiling point
- 3212
- Density
- 6.773
- Period
- 6
- Group
- 0
- Discovery
- 1885 von Welsbach
- Abundance
- 9.2
- Radius
- 2.7
- Electronegativity
- 1.13
- Ionization
- 5.473
- Isotope
- 15
- Electronic configuration
- [Xe] 4f3 6s2
- Oxidation state
- 2,3,4
- Electron
- 2,8,18,21,8,2
Minerals containing praseodymium
| first name | Hardness | Density | Chemical formula |
|---|---|---|---|
| Allanite-(La) | — | 3.93 | CaLaAl2Fe2+(Si2O7)(SiO4)O(OH) |
| Aluminocerite-(Ce) | — | 4.68 | (Ce,Ca)9Al(SiO4)3(SiO3OH)4(OH)3 |
| Astrocyanite-(Ce) | — | 3.80 | Cu2Ce2(UO2)(CO3)5(OH)2·1.5H2O |
| Biraite-(Ce) | — | 4.76 | Ce2Fe2+Si2O7(CO3) |
| Bussyite-(Ce) | — | 3.00 | (Na,H2O)6(Ce,REE)3Be5MnSi9(O,OH)30F4 |
| Calciopetersite | — | 3.33 | Cu2+6Ca(PO4)2(PO3OH)(OH)6·3H2O |
| Carbokentbrooksite | — | 3.14 | (Na)12(Na,Ce)3Ca6Mn3Zr3NbSi25O73(OH)3(CO3)·H2O |
| Cerite-(La) | — | 4.70 | (La,Ce,Ca)9(Fe3+,Ca,Mg)(SiO4)3(SiO3OH)4(OH)3 |
| Chukhrovite-(Nd) | — | 2.42 | Ca3NdAl2SO4F13·12H2O |
| Decrespignyite-(Y) | — | 3.64 | Y4Cu(CO3)4Cl(OH)5·2H2O |
| Dissakisite-(La) | — | 3.79 | CaLaMgAl2(Si2O7)(SiO4)O(OH) |
| Diversilite-(Ce) | — | 3.68 | Na2Ba6Ce2Fe2+Ti3Si12O36(OH)10·nH2O |
| Ferronordite-(La) | — | 3.54 | Na3SrLaFe2+Si6O17 |
| Fluorbritholite-(Ce) | — | 4.66 | (Ce,Ca)5(SiO4)3F |
| Fluorcalciobritholite | — | 4.20 | (Ca,REE)5(SiO4,PO4)3F |
| Galgenbergite-(Ce) | — | 0.00 | CaCe2(CO3)4·H2O |
| Gatelite-(Ce) | — | 4.51 | (Ca,Ce)4(Al,Mg,Fe)4(Si2O7)(SiO4)3(O,F,OH)3 |
| Håleniusite-(La) | — | 6.50 | LaOF |
| Hingganite-(Ce) | — | 4.28 | BeCe(SiO4)(OH) |
| Hingganite-(Y) | — | 0.00 | BeY(SiO4)(OH) |
| Ilímaussite-(Ce) | — | 3.60 | (Ba,Na)10K3Na4.5Ce5(Nb,Ti)6O6(Si12O36)(Si9O18)(O,OH)24 |
| Johnsenite-(Ce) | — | 3.20 | Na12Ce3Ca6Mn3Zr3WSi25O73(CO3)(OH)2 |
| Kozoite-(La) | — | 4.16 | LaCO3(OH) |
| Kozoite-(Nd) | — | 4.77 | NdCO3(OH) |
| Kukharenkoite-(La) | — | 4.65 | Ba2La(CO3)3F |
| Orthojoaquinite-(La) | — | 4.10 | NaBa2La2Fe2+Ti2Si8O26(OH,O,F)·H2O |
| Paratooite-(La) | — | 0.00 | (La,Ca,Na,Sr)6Cu(CO3)8 |
| Percleveite-(Ce) | — | 5.21 | Ce2Si2O7 |
| Petersenite-(Ce) | — | 3.69 | Na4Ce2(CO3)5 |
| Piergorite-(Ce) | — | 0.00 | Ca8Ce2AlLiSi6B8O36(OH)2 |
| Plumboagardite | — | 3.74 | Cu2+6(Pb,La,Nd,Ce,Ca)(AsO4)3(OH)6·3H2O |
| Polyakovite-(Ce) | — | 4.75 | (Ce,Ca)4MgCr2(Ti,Nb)2Si4O22 |
| Qaqarssukite-(Ce) | — | 0.00 | BaCe(CO3)2F |
| Samarskite-(Yb) | — | 7.03 | YbNbO4 |
| Sazhinite-(La) | — | 0.00 | Na3LaSi6O15·2H2O |
| Tundrite-(Ce) | — | 4.08 | Na2Ce2TiO2SiO4(CO3)2 |
| Uedaite-(Ce) | — | 4.19 | Mn2+CeAl2Fe2+(Si2O7)(SiO4)O(OH) |
| Västmanlandite-(Ce) | — | 4.51 | Ce3CaMg2Al2Si5O19(OH)2F |
| Wakefieldite-(La) | — | 4.70 | LaVO4 |
| Zugshunstite-(Ce) | — | 0.00 | CeAl(SO4)2(C2O4)·12H2O |