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