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mineralogy elements Hf Hafnium

Hf - Hafnium - TRANSITION METAL

2150°
5400°
178.49
2
3
4
72
Hf
[Xe] 4f14 5d2 6s2
2
8
18
32
10
2
1.3
6.8251
Synthetic
Radioactive
Liquid
Gaseous
Hafnium Electronic configuration diagram
Electronic configuration diagram

Name Hafnium
Number 72
Atomic 178.49
Symbol Hf
Fusion 2150
Boiling 5400
Density 13.31
Period 6
Group 4
Discovery 1923 Coster and von Hevesy
Abundance 3
Radius 2.2
Electronegativity 1.3
Ionization 6.8251
Number of isotopes 17
Electronic configuration [Xe] 4f14 5d2 6s2
Oxidation states 2,3,4
Electron by energy level 2,8,18,32,10,2

Mineral Hardness Density Formula
4.84 Sc4Zr3O12
5.50 / 5.50 3.16 (Na,Ca)13Sr11(Zr,Y,Nb)14Si42B6O132(OH)12·12H2O
3.00 / 4.00 3.03 Ca6Zr(Si2O7)2(OH)4
5.50 / 5.50 2.87 Na11Ca9(Fe3+,Fe2+)2Zr3Nb(Si25O73)(OH,H2O,Cl,O)5
5.00 / 6.00 3.06 Na15Ca6Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(F,Cl)2
5.00 / 5.00 3.05 Na12(Mn,Sr,REE)3Ca6Fe2+3Zr3NbSi25O76Cl2·H2O
7.50 / 7.50 6.97 HfSiO4
5.00 / 5.00 2.82 (Na,H3O)15(Ca,Mn,REE)6Fe3+2Zr3Si24O66(O,OH)6Cl·nH2O
5.00 / 6.00 3.20 Na12Ce3Ca6Mn3Zr3WSi25O73(CO3)(OH)2
5.00 / 5.00 3.32 Na(Na,Ca)2Ca2(Mn,Ca)ZrTi(Si2O7)2(F,O)4
8.00 / 8.50 4.59 CaZrO3
6.00 / 6.00 3.32 Na2Ca4(Nb,Zr)2(Si2O7)2(O,F)4
5.50 / 5.50 3.24 Na12Sr3Ca6Fe3Zr3NbSi25O73(O,OH,H2O)3Cl2
5.00 / 5.00 2.97 Na15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si26O72(OH,O)4Cl·H2O
7.50 / 7.50 4.60 ZrSiO4