rhodium mungsuh Samarium
Tabel périodik
Symbol
Rh
Sm
Panggil Group
9
9
ora Sumadhiya
Panggil periode
5
6
Block
d block
pemblokiran f
Family unsur
transisi Metal
lanthanide
CAS Number
7440166
99+
7440199
99+
Jeneng papan Group
Fm_ 3M
R_ 3M
Space Group Number
225.00
2
166.00
6
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.
- Samarium logam mbantu menehi pancingan metabolisme awak.
- Samarium logam ana 1st diamati dening Jean Charles Galissard de Marignac ing Dydimia ing 1853.
sumber
bumi lemah ndhuwur, Found Minangka By-produk, Found in Minerals, Mining
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
William Hyde Wollaston
Lecoq de Boisbaudran
Discovery
ing taun 1804
ing taun 1879
turah mbrawah
Turah mbrawah Ing Universe
6 * 10-8 %
26
5 * 10-7 %
19
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 %
29
Turah mbrawah Ing Segara
ora Sumadhiya
0.00 %
40
ulah
Ulah lan Wuku
Character length exceed error
Character length exceed error
Ulah Industrial
Industry Aerospace, Industry automobile, Industry Listrik, Industry Elektronik
Industry Aerospace, Industry automobile, Industri Kimia, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi, Ing Reactors Nuclear
Properties biologi
keracunan
NA
rada Toxic
Saiki ing badan Human
Ora
Ya
Sang
ora Sumadhiya
0.01 Sang / mg dm-3
22
fisik Properties
leleh Point
1,966.00 ° C
12
1,072.00 ° C
99+
Boiling Point
3,727.00 ° C
17
1,900.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
metallic
lustrous
atose
Mohs atose
6.00
6
ora Sumadhiya
Brinell atose
980.00 MPa
9
441.00 MPa
27
Vickers atose
1,100.00 MPa
9
412.00 MPa
24
Kacepetan swara
4,700.00 m / s
15
2,130.00 m / s
99+
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
Sm
isotop
Isotop dikenal
16
23
30
9
keelektronegatifan
Pauling Elektronegativitas
2.28
3
1.17
40
Allred Rochow Elektronegativitas
1.45
16
1.07
32
Allen Elektronegativitas
1.56
24
ora Sumadhiya
Electropositivity
Pauling Electropositivity
1.72
99+
2.83
14
tenogo ionisasi
Level Energy 1st
719.70 kJ / mol
29
544.50 kJ / mol
99+
Level Energy 2
1,740.00 kJ / mol
26
1,070.00 kJ / mol
99+
Level Energy 3rd
2,997.00 kJ / mol
27
2,260.00 kJ / mol
99+
Level Energy 4
ora Sumadhiya
3,990.00 kJ / mol
37
padha karo elektrokimia
1.28 g / amp-day
99+
1.87 g / amp-day
34
Fungsi Work elektron
4.98 eV
6
2.70 eV
99+
Properties Kimia liyane
anti Corrosion, ionisasi, Isotop radioaktif
ionisasi, Isotop radioaktif
atom Properties
Panggil atom
45
99+
62
99+
Konfigurasi elektron
[Kr] 4d 8 5S 1
[Xe] 4F 6 6s 2
Struktur Crystal
Face tengah kubik (FCC)
Rhombohedral (RHO)
Crystal pola
FCC-Crystal-Structure-of-Rhodium.jpg#100
RHO-Crystal-Structure-of-Samarium.jpg#100
atom
Jumlah proton
45
99+
62
99+
Jumlah Neutron
58
99+
88
39
Jumlah Èlèktron
45
99+
62
99+
Radius saka Atom
Radius atom
134.00 pm
99+
180.00 pm
14
kovalen Radius
142.00 pm
99+
198.00 pm
13
Van der Waals Radius
200.00 pm
28
229.00 pm
20
Bobot atom
102.91 Amu
99+
150.36 Amu
99+
Volume atom
8.30 cm3 / mol
99+
19.95 cm3 / mol
19
Nomer atom jejer
Potensi Valence Electron
64.00 (-eV)
22
44.80 (-eV)
37
Constant pola
380.34 pm
27
362.10 pm
33
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
12.41 g / cm 3
28
7.52 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
10.70 g / cm3
14
7.16 g / cm3
32
Strength tensile
951.00 MPa
5
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
ora Sumadhiya
0.94 (Pa)
9
Meksa beluk ing 2000 K
0.02 (Pa)
19
ora Sumadhiya
situs kelenturan
nyukur pengaturan
150.00 GPA
6
19.50 GPA
34
pengaturan akeh
275.00 GPA
5
37.80 GPA
35
Young kang pengaturan
380.00 GPA
5
49.70 GPA
37
Poisson rasio
0.26
22
0.27
19
Properties Teknik liyane
malleable
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
12.41
20
7.52
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
43.30 nΩ · m
99+
0.94 nΩ · m
99+
konduktivitas listrik
0.21 10 6 / cm Ω
8
0.01 10 6 / cm Ω
99+
elektron Affinity
109.70 kJ / mol
7
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.24 J / (kg K)
22
0.20 J / (kg K)
31
Graham Kapasitas kalor
24.98 J / mol · K
99+
29.54 J / mol · K
7
doyo termal
150.00 W / m · K
9
13.30 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
8.20 μm / (m · K)
99+
12.70 μm / (m · K)
30
enthalpy
Enthalpy panguapan
495.40 kJ / mol
12
166.40 kJ / mol
99+
Enthalpy saka Fusion
21.76 kJ / mol
10
8.62 kJ / mol
40
Enthalpy saka atomization
556.50 kJ / mol
12
209.00 kJ / mol
99+
Standard molar Entropy
31.50 J / mol.K
99+
69.60 J / mol.K
15
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