Holmium mungsuh rhodium
Tabel périodik
Symbol
Ho
Rh
Panggil Group
ora Sumadhiya
9
9
Panggil periode
6
5
Block
pemblokiran f
d block
Family unsur
lanthanide
transisi Metal
CAS Number
7440600
29
7440166
99+
Jeneng papan Group
P63 / mmc
Fm_ 3M
Space Group Number
194.00
5
225.00
2
facts
Facts Interesting
- metal Holmium sanget alus lan malleable.
- metal Holmium uga dikenal kanggo resistivity sawijining karat.
- 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
Marc Delafontaine
William Hyde Wollaston
Discovery
ing taun 1878
ing taun 1804
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-8 %
27
6 * 10-8 %
26
Turah mbrawah Ing Sun
~-9999 %
~0.0000002 %
25
Turah mbrawah Ing meteorit
0.00 %
99+
0.00 %
36
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
38
0.00 %
99+
Turah mbrawah Ing Segara
0.00 %
99+
ora Sumadhiya
ulah
Ulah lan Wuku
- metal Holmium duwe kemampuan kanggo nresep neutron, supaya logam iki digunakake ing reaktor nuklir kanggo njaga reaksi berantai saka unsur ing kontrol.
- Wesi saka Holmium digunakake kanggo gawé Magnet.
Character length exceed error
Ulah Industrial
NA
Industry Aerospace, Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi, Nuclear Riset
wesi
Properties biologi
keracunan
Low Toxic
NA
Saiki ing badan Human
Ora
Ora
fisik Properties
leleh Point
1,461.00 ° C
30
1,966.00 ° C
12
Boiling Point
2,600.00 ° C
99+
3,727.00 ° C
17
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
metallic
metallic
atose
Mohs atose
ora Sumadhiya
6.00
6
Brinell atose
746.00 MPa
13
980.00 MPa
9
Vickers atose
481.00 MPa
23
1,100.00 MPa
9
Kacepetan swara
2,760.00 m / s
30
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
Ho
Rh
isotop
Isotop dikenal
34
5
16
23
keelektronegatifan
Pauling Elektronegativitas
1.23
37
2.28
3
Allred Rochow Elektronegativitas
1.10
30
1.45
16
Allen Elektronegativitas
ora Sumadhiya
1.56
24
Electropositivity
Pauling Electropositivity
2.77
17
1.72
99+
tenogo ionisasi
Level Energy 1st
581.00 kJ / mol
99+
719.70 kJ / mol
29
Level Energy 2
1,140.00 kJ / mol
99+
1,740.00 kJ / mol
26
Level Energy 3rd
2,204.00 kJ / mol
99+
2,997.00 kJ / mol
27
Level Energy 4
4,100.00 kJ / mol
34
ora Sumadhiya
padha karo elektrokimia
2.02 g / amp-day
29
1.28 g / amp-day
99+
Fungsi Work elektron
ora Sumadhiya
4.98 eV
6
Properties Kimia liyane
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
anti Corrosion, ionisasi, Isotop radioaktif
atom Properties
Panggil atom
67
99+
45
99+
Konfigurasi elektron
[Xe] 4F 11 6s 2
[Kr] 4d 8 5S 1
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Face tengah kubik (FCC)
Crystal pola
HCP-Crystal-Structure-of-Holmium.jpg#100
FCC-Crystal-Structure-of-Rhodium.jpg#100
atom
Jumlah proton
67
99+
45
99+
Jumlah Neutron
98
34
58
99+
Jumlah Èlèktron
67
99+
45
99+
Radius saka Atom
Radius atom
176.00 pm
18
134.00 pm
99+
kovalen Radius
192.00 pm
17
142.00 pm
99+
Van der Waals Radius
216.00 pm
24
200.00 pm
28
Bobot atom
164.93 Amu
99+
102.91 Amu
99+
Volume atom
18.70 cm3 / mol
24
8.30 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
47.90 (-eV)
31
64.00 (-eV)
22
Constant pola
357.73 pm
38
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
8.79 g / cm 3
99+
12.41 g / cm 3
28
Kapadhetan Nalika Liquid (ing mp)
8.34 g / cm3
26
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)
16
ora Sumadhiya
Meksa beluk ing 2000 K
ora Sumadhiya
0.02 (Pa)
19
situs kelenturan
nyukur pengaturan
26.30 GPA
28
150.00 GPA
6
pengaturan akeh
40.20 GPA
32
275.00 GPA
5
Young kang pengaturan
64.80 GPA
31
380.00 GPA
5
Poisson rasio
0.23
29
0.26
22
Properties Teknik liyane
ductile, malleable, Sectile
malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
8.80
35
12.41
20
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
814.00 nΩ · m
4
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
0.16 J / (kg K)
35
0.24 J / (kg K)
22
Graham Kapasitas kalor
27.15 J / mol · K
19
24.98 J / mol · K
99+
doyo termal
16.20 W / m · K
99+
150.00 W / m · K
9
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
11.20 μm / (m · K)
35
8.20 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
241.00 kJ / mol
38
495.40 kJ / mol
12
Enthalpy saka Fusion
11.76 kJ / mol
29
21.76 kJ / mol
10
Enthalpy saka atomization
301.00 kJ / mol
36
556.50 kJ / mol
12
Standard molar Entropy
75.30 J / mol.K
8
31.50 J / mol.K
99+
|
||
|
||
|
