Hafnium mungsuh rhodium
Tabel périodik
Symbol
Hf
Rh
Panggil Group
4
14
9
9
Panggil periode
6
5
Block
d block
d block
Family unsur
transisi Metal
transisi Metal
CAS Number
7440586
30
7440166
99+
Jeneng papan Group
P63 / mmc
Fm_ 3M
Space Group Number
194.00
5
225.00
2
facts
Facts Interesting
- Hafnium logam reaktif, Empu ora ketemu gratis ing alam.
- metal Hafnium minangka predicated sawise Mendeleev rampung tabel périodik kang.
- Rhodium punika unsur paling langka metu kabeh logam non-radioaktif ing bumi.
- Rhodium punika salah siji sing paling awet lan hard logam, kang uga duwe reflectance dhuwur.
sumber
Miturut-produk Nyaring panggolekan Zirconium
bumi lemah ndhuwur, Found Minangka By-produk, Found in Minerals, Mining
History
sing katutup
Dirk Coster and George de Hevesy
William Hyde Wollaston
Discovery
ing taun 1922
ing taun 1804
turah mbrawah
Turah mbrawah Ing Universe
7 * 10-8 %
25
6 * 10-8 %
26
Turah mbrawah Ing Sun
~0.0000001 %
26
~0.0000002 %
25
Turah mbrawah Ing meteorit
0.00 %
37
0.00 %
36
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
31
0.00 %
99+
Turah mbrawah Ing Segara
0.00 %
27
ora Sumadhiya
ulah
Ulah lan Wuku
Character length exceed error
Character length exceed error
Ulah Industrial
Industry amunisi
Industry Aerospace, Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi, Ing Reactors Nuclear, Nuclear Riset, tujuan Research
wesi
Properties biologi
keracunan
Toxic
NA
Saiki ing badan Human
Ora
Ora
fisik Properties
leleh Point
2,150.00 ° C
10
1,966.00 ° C
12
Boiling Point
5,400.00 ° C
5
3,727.00 ° C
17
katon
State fisik
Solid
Solid
warna
Gray
perak Putih
luster
metallic
metallic
atose
Mohs atose
5.50
7
6.00
6
Brinell atose
1,450.00 MPa
6
980.00 MPa
9
Vickers atose
1,520.00 MPa
5
1,100.00 MPa
9
Kacepetan swara
3,010.00 m / s
27
4,700.00 m / s
15
Properties Optical
reflectivity
ora Sumadhiya
84.00 %
4
allotropes
Ora
Ora
α allotropes
ora Sumadhiya
ora Sumadhiya
β allotropes
ora Sumadhiya
ora Sumadhiya
γ allotropes
ora Sumadhiya
ora Sumadhiya
Kimia Properties
Formula Kimia
Hf
Rh
isotop
Isotop dikenal
32
7
16
23
keelektronegatifan
Pauling Elektronegativitas
1.30
32
2.28
3
Allred Rochow Elektronegativitas
1.23
25
1.45
16
Allen Elektronegativitas
1.16
37
1.56
24
Electropositivity
Pauling Electropositivity
2.70
22
1.72
99+
tenogo ionisasi
Level Energy 1st
658.50 kJ / mol
40
719.70 kJ / mol
29
Level Energy 2
1,440.00 kJ / mol
99+
1,740.00 kJ / mol
26
Level Energy 3rd
2,250.00 kJ / mol
99+
2,997.00 kJ / mol
27
Level Energy 4
3,216.00 kJ / mol
99+
ora Sumadhiya
padha karo elektrokimia
1.66 g / amp-day
99+
1.28 g / amp-day
99+
Fungsi Work elektron
3.90 eV
27
4.98 eV
6
Properties Kimia liyane
anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
anti Corrosion, ionisasi, Isotop radioaktif
atom Properties
Panggil atom
72
99+
45
99+
Konfigurasi elektron
[Xe] 4F 14 5d 2 6s 2
[Kr] 4d 8 5S 1
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Face tengah kubik (FCC)
Crystal pola
BCC-Crystal-Structure-.jpg#100
FCC-Crystal-Structure-of-Rhodium.jpg#100
atom
Jumlah proton
72
99+
45
99+
Jumlah Neutron
106
29
58
99+
Jumlah Èlèktron
72
99+
45
99+
Radius saka Atom
Radius atom
159.00 pm
28
134.00 pm
99+
kovalen Radius
175.00 pm
23
142.00 pm
99+
Van der Waals Radius
200.00 pm
28
200.00 pm
28
Bobot atom
178.49 Amu
39
102.91 Amu
99+
Volume atom
13.60 cm3 / mol
38
8.30 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
81.00 (-eV)
16
64.00 (-eV)
22
Constant pola
319.64 pm
99+
380.34 pm
27
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
1.58
12
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
13.31 g / cm 3
26
12.41 g / cm 3
28
Kapadhetan Nalika Liquid (ing mp)
12.00 g / cm3
12
10.70 g / cm3
14
Strength tensile
445.00 MPa
8
951.00 MPa
5
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 2000 K
0.00 (Pa)
24
0.02 (Pa)
19
situs kelenturan
nyukur pengaturan
30.00 GPA
23
150.00 GPA
6
pengaturan akeh
110.00 GPA
15
275.00 GPA
5
Young kang pengaturan
78.00 GPA
25
380.00 GPA
5
Poisson rasio
0.37
7
0.26
22
Properties Teknik liyane
ductile, malleable
malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
13.31
18
12.41
20
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
331.00 nΩ · m
14
43.30 nΩ · m
99+
konduktivitas listrik
0.03 10 6 / cm Ω
39
0.21 10 6 / cm Ω
8
elektron Affinity
0.00 kJ / mol
40
109.70 kJ / mol
7
termal Properties
Kalor tartamtu
0.14 J / (kg K)
37
0.24 J / (kg K)
22
Graham Kapasitas kalor
25.73 J / mol · K
36
24.98 J / mol · K
99+
doyo termal
23.00 W / m · K
99+
150.00 W / m · K
9
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
5.90 μm / (m · K)
99+
8.20 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
661.10 kJ / mol
5
495.40 kJ / mol
12
Enthalpy saka Fusion
25.10 kJ / mol
8
21.76 kJ / mol
10
Enthalpy saka atomization
703.00 kJ / mol
5
556.50 kJ / mol
12
Standard molar Entropy
43.60 J / mol.K
34
31.50 J / mol.K
99+
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