cerium mungsuh rhodium
Tabel périodik
Symbol
Ce
Rh
Panggil Group
ora Sumadhiya
9
9
Panggil periode
6
5
Block
pemblokiran f
d block
Family unsur
lanthanide
transisi Metal
CAS Number
7440451
99+
7440166
99+
Jeneng papan Group
P63 / mmc
Fm_ 3M
Space Group Number
194.00
5
225.00
2
facts
Facts Interesting
Character length exceed error
- 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
Found in Minerals, Mining, Ores saka Minerals
bumi lemah ndhuwur, Found Minangka By-produk, Found in Minerals, Mining
History
sing katutup
Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger
William Hyde Wollaston
Discovery
ing 1803
ing taun 1804
turah mbrawah
Turah mbrawah Ing Universe
1 * 10-6 %
16
6 * 10-8 %
26
Turah mbrawah Ing Sun
~0.0000004 %
23
~0.0000002 %
25
Turah mbrawah Ing meteorit
0.00 %
27
0.00 %
36
Turah mbrawah Ing bumi lemah ndhuwur
0.01 %
18
0.00 %
99+
Turah mbrawah Ing Segara
0.00 %
33
ora Sumadhiya
ulah
Ulah lan Wuku
- Kang digunakake kanggo kalebu flints kanggo korek rokok.
- Sawijining senyawa Cerium (Gerah) oksida digunakake minangka katalis; sijine nang tembok saka open minangka ngalangi saka buildup saka ampas masak.
Character length exceed error
Ulah Industrial
Industri Kimia
Industry Aerospace, Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
Medical Research
NA
Ulah liyane
wesi
wesi
Properties biologi
keracunan
arep Toxic
NA
Saiki ing badan Human
Ya
Ora
Sang
0.00 Sang / mg dm-3
30
ora Sumadhiya
ing Bone
2.70 ppm
14
ora Sumadhiya
fisik Properties
leleh Point
795.00 ° C
99+
1,966.00 ° C
12
Boiling Point
3,257.00 ° C
23
3,727.00 ° C
17
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
lustrous
metallic
atose
Mohs atose
2.50
14
6.00
6
Brinell atose
186.00 MPa
99+
980.00 MPa
9
Vickers atose
210.00 MPa
32
1,100.00 MPa
9
Kacepetan swara
2,100.00 m / s
99+
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
Ce
Rh
isotop
Isotop dikenal
30
9
16
23
keelektronegatifan
Pauling Elektronegativitas
1.12
99+
2.28
3
Allred Rochow Elektronegativitas
1.08
31
1.45
16
Allen Elektronegativitas
ora Sumadhiya
1.56
24
Electropositivity
Pauling Electropositivity
2.88
11
1.72
99+
tenogo ionisasi
Level Energy 1st
534.40 kJ / mol
99+
719.70 kJ / mol
29
Level Energy 2
1,050.00 kJ / mol
99+
1,740.00 kJ / mol
26
Level Energy 3rd
1,949.00 kJ / mol
99+
2,997.00 kJ / mol
27
Level Energy 4
3,547.00 kJ / mol
99+
ora Sumadhiya
Level Energy 5th
6,325.00 kJ / mol
22
ora Sumadhiya
Level Energy 6th
7,490.00 kJ / mol
21
ora Sumadhiya
padha karo elektrokimia
1.74 g / amp-day
99+
1.28 g / amp-day
99+
Fungsi Work elektron
2.84 eV
39
4.98 eV
6
Properties Kimia liyane
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
anti Corrosion, ionisasi, Isotop radioaktif
atom Properties
Panggil atom
58
99+
45
99+
Konfigurasi elektron
[Xe] 4F 1 5d 1 6s 2
[Kr] 4d 8 5S 1
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Face tengah kubik (FCC)
Crystal pola
DHCP-Crystal-Structure-of-Cerium.jpg#100
FCC-Crystal-Structure-of-Rhodium.jpg#100
atom
Jumlah proton
58
99+
45
99+
Jumlah Neutron
82
99+
58
99+
Jumlah Èlèktron
58
99+
45
99+
Radius saka Atom
Radius atom
181.80 pm
12
134.00 pm
99+
kovalen Radius
204.00 pm
8
142.00 pm
99+
Van der Waals Radius
235.00 pm
17
200.00 pm
28
Bobot atom
140.12 Amu
99+
102.91 Amu
99+
Volume atom
20.67 cm3 / mol
17
8.30 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
41.78 (-eV)
99+
64.00 (-eV)
22
Constant pola
362.00 pm
34
380.34 pm
27
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
6.77 g / cm 3
99+
12.41 g / cm 3
28
Kapadhetan Nalika Liquid (ing mp)
6.55 g / cm3
38
10.70 g / cm3
14
Strength tensile
ora Sumadhiya
951.00 MPa
5
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa)
34
ora Sumadhiya
Meksa beluk ing 2000 K
1.04 (Pa)
13
0.02 (Pa)
19
situs kelenturan
nyukur pengaturan
13.50 GPA
99+
150.00 GPA
6
pengaturan akeh
21.50 GPA
99+
275.00 GPA
5
Young kang pengaturan
33.60 GPA
99+
380.00 GPA
5
Poisson rasio
0.24
27
0.26
22
Properties Teknik liyane
ductile, malleable
malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
6.77
99+
12.41
20
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
828.00 nΩ · m
3
43.30 nΩ · m
99+
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.21 10 6 / cm Ω
8
elektron Affinity
50.00 kJ / mol
21
109.70 kJ / mol
7
termal Properties
Kalor tartamtu
0.19 J / (kg K)
32
0.24 J / (kg K)
22
Graham Kapasitas kalor
26.94 J / mol · K
23
24.98 J / mol · K
99+
doyo termal
11.30 W / m · K
99+
150.00 W / m · K
9
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
6.30 μm / (m · K)
99+
8.20 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
414.00 kJ / mol
16
495.40 kJ / mol
12
Enthalpy saka Fusion
5.46 kJ / mol
99+
21.76 kJ / mol
10
Enthalpy saka atomization
381.00 kJ / mol
23
556.50 kJ / mol
12
Standard molar Entropy
72.00 J / mol.K
12
31.50 J / mol.K
99+
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