Erbium mungsuh rhodium
Tabel périodik
Symbol
Er
Rh
Panggil Group
ora Sumadhiya
9
9
Panggil periode
6
5
Block
pemblokiran f
d block
Family unsur
lanthanide
transisi Metal
CAS Number
7440520
35
7440166
99+
Jeneng papan Group
P63 / mmc
Fm_ 3M
Space Group Number
194.00
5
225.00
2
facts
Facts Interesting
- Erbium logam digunakake minangka alloyed karo Vanadium wis alus.
- Panaliten anyar nuduhake yen iku mbiyantu kanggo metabolisme.
- 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
Mining
bumi lemah ndhuwur, Found Minangka By-produk, Found in Minerals, Mining
History
sing katutup
Carl Gustaf Mosander
William Hyde Wollaston
Discovery
Wonten ing taun 1842
ing taun 1804
turah mbrawah
Turah mbrawah Ing Universe
2 * 10-7 %
22
6 * 10-8 %
26
Turah mbrawah Ing Sun
~0.0000001 %
26
~0.0000002 %
25
Turah mbrawah Ing meteorit
0.00 %
36
0.00 %
36
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
32
0.00 %
99+
Turah mbrawah Ing Segara
0.00 %
36
ora Sumadhiya
ulah
Ulah lan Wuku
- Wis cenderung kanggo njaluk tarnished ing online mbukak, nanging nalika alloyed karo unsur kaya erbium, vanadium, tingkat atose sudo.
- senyawa kaya Erbium oxide digunakake ing kaca tingal safety saka welders lan buruh metal.
Character length exceed error
Ulah Industrial
Industri Kimia
Industry Aerospace, Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi
Properties biologi
keracunan
mildly Toxic
NA
Saiki ing badan Human
Ora
Ora
fisik Properties
leleh Point
1,522.00 ° C
28
1,966.00 ° C
12
Boiling Point
2,510.00 ° C
99+
3,727.00 ° C
17
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
lustrous
metallic
atose
Mohs atose
ora Sumadhiya
6.00
6
Brinell atose
814.00 MPa
11
980.00 MPa
9
Vickers atose
589.00 MPa
19
1,100.00 MPa
9
Kacepetan swara
2,830.00 m / s
28
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
Er
Rh
isotop
Isotop dikenal
31
8
16
23
keelektronegatifan
Pauling Elektronegativitas
1.24
36
2.28
3
Allred Rochow Elektronegativitas
1.11
29
1.45
16
Allen Elektronegativitas
ora Sumadhiya
1.56
24
Electropositivity
Pauling Electropositivity
2.76
18
1.72
99+
tenogo ionisasi
Level Energy 1st
589.30 kJ / mol
99+
719.70 kJ / mol
29
Level Energy 2
1,150.00 kJ / mol
99+
1,740.00 kJ / mol
26
Level Energy 3rd
2,194.00 kJ / mol
99+
2,997.00 kJ / mol
27
Level Energy 4
4,120.00 kJ / mol
33
ora Sumadhiya
padha karo elektrokimia
2.08 g / amp-day
28
1.28 g / amp-day
99+
Fungsi Work elektron
ora Sumadhiya
4.98 eV
6
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
anti Corrosion, ionisasi, Isotop radioaktif
atom Properties
Panggil atom
68
99+
45
99+
Konfigurasi elektron
[Xe] 4F 12 6s 2
[Kr] 4d 8 5S 1
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Face tengah kubik (FCC)
Crystal pola
HCP-Crystal-Structure-of-Erbium.jpg#100
FCC-Crystal-Structure-of-Rhodium.jpg#100
atom
Jumlah proton
68
99+
45
99+
Jumlah Neutron
99
33
58
99+
Jumlah Èlèktron
68
99+
45
99+
Radius saka Atom
Radius atom
176.00 pm
18
134.00 pm
99+
kovalen Radius
189.00 pm
19
142.00 pm
99+
Van der Waals Radius
ora Sumadhiya
200.00 pm
28
Bobot atom
167.26 Amu
99+
102.91 Amu
99+
Volume atom
18.40 cm3 / mol
25
8.30 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
49.00 (-eV)
29
64.00 (-eV)
22
Constant pola
355.88 pm
39
380.34 pm
27
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
1.57
17
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
9.07 g / cm 3
99+
12.41 g / cm 3
28
Kapadhetan Nalika Liquid (ing mp)
8.86 g / cm3
23
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)
20
ora Sumadhiya
Meksa beluk ing 2000 K
ora Sumadhiya
0.02 (Pa)
19
situs kelenturan
nyukur pengaturan
28.30 GPA
25
150.00 GPA
6
pengaturan akeh
44.40 GPA
27
275.00 GPA
5
Young kang pengaturan
69.90 GPA
29
380.00 GPA
5
Poisson rasio
0.24
28
0.26
22
Properties Teknik liyane
malleable
malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
9.07
32
12.41
20
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.86 nΩ · m
99+
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
0.17 J / (kg K)
34
0.24 J / (kg K)
22
Graham Kapasitas kalor
28.12 J / mol · K
11
24.98 J / mol · K
99+
doyo termal
14.50 W / m · K
99+
150.00 W / m · K
9
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
12.20 μm / (m · K)
31
8.20 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
261.00 kJ / mol
35
495.40 kJ / mol
12
Enthalpy saka Fusion
17.20 kJ / mol
15
21.76 kJ / mol
10
Enthalpy saka atomization
314.00 kJ / mol
33
556.50 kJ / mol
12
Standard molar Entropy
73.10 J / mol.K
11
31.50 J / mol.K
99+
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