Rhenium mungsuh Holmium
Tabel périodik
Symbol
Re
Ho
Panggil Group
7
11
ora Sumadhiya
Panggil periode
6
6
Block
d block
pemblokiran f
Family unsur
transisi Metal
lanthanide
CAS Number
7440155
99+
7440600
29
Jeneng papan Group
P63 / mmc
P63 / mmc
Space Group Number
194.00
5
194.00
5
facts
Facts Interesting
- kimia saka Rhenium sing padha kanggo Manganese.
- metal Rhenium digawe nalika panyulingan Molybdenum.
- metal Holmium sanget alus lan malleable.
- metal Holmium uga dikenal kanggo resistivity sawijining karat.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Masataka Ogawa
Marc Delafontaine
Discovery
ing taun 1908
ing taun 1878
turah mbrawah
Turah mbrawah Ing Universe
2 * 10-8 %
29
5 * 10-8 %
27
Turah mbrawah Ing Sun
~0.00000001 %
29
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
99+
0.00 %
99+
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
99+
0.00 %
38
Turah mbrawah Ing Segara
0.00 %
34
0.00 %
99+
ulah
Ulah lan Wuku
- Wesi saka Rhenium digunakake minangka materi kontak listrik. Iku bisa nolak tahan karat busar.
- katalis digunakake ing hidrogenasi kimia nggoleki. Sawijining campuran karo nikel digunakake kanggo gawé glathi turbin.
- 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.
Ulah Industrial
Industry Aerospace, Industry automobile, Industri Kimia, Industry Listrik, Industry Elektronik
NA
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi, Nuclear Riset
Properties biologi
keracunan
Low Toxic
Low Toxic
Saiki ing badan Human
Ora
Ora
fisik Properties
leleh Point
3,180.00 ° C
2
1,461.00 ° C
30
Boiling Point
5,627.00 ° C
2
2,600.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Gray
perak Putih
luster
metallic
metallic
atose
Mohs atose
7.00
3
ora Sumadhiya
Brinell atose
1,320.00 MPa
8
746.00 MPa
13
Vickers atose
1,350.00 MPa
7
481.00 MPa
23
Kacepetan swara
4,700.00 m / s
15
2,760.00 m / s
30
Properties Optical
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
Re
Ho
isotop
Isotop dikenal
33
6
34
5
keelektronegatifan
Pauling Elektronegativitas
1.90
11
1.23
37
Allred Rochow Elektronegativitas
1.46
15
1.10
30
Allen Elektronegativitas
1.60
21
ora Sumadhiya
Electropositivity
Pauling Electropositivity
2.10
99+
2.77
17
tenogo ionisasi
Level Energy 1st
760.00 kJ / mol
20
581.00 kJ / mol
99+
Level Energy 2
1,260.00 kJ / mol
99+
1,140.00 kJ / mol
99+
Level Energy 3rd
2,510.00 kJ / mol
99+
2,204.00 kJ / mol
99+
Level Energy 4
3,640.00 kJ / mol
99+
4,100.00 kJ / mol
34
padha karo elektrokimia
0.99 g / amp-day
99+
2.02 g / amp-day
29
Fungsi Work elektron
4.96 eV
7
ora Sumadhiya
Properties Kimia liyane
Corrosion, ionisasi, Isotop radioaktif, kelarutan
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
75
99+
67
99+
Konfigurasi elektron
[Xe] 4F 14 5d 5 6s 2
[Xe] 4F 11 6s 2
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
BCC-Crystal-Structure-.jpg#100
HCP-Crystal-Structure-of-Holmium.jpg#100
atom
Jumlah proton
75
40
67
99+
Jumlah Neutron
111
26
98
34
Jumlah Èlèktron
75
40
67
99+
Radius saka Atom
Radius atom
137.00 pm
40
176.00 pm
18
kovalen Radius
151.00 pm
34
192.00 pm
17
Van der Waals Radius
200.00 pm
28
216.00 pm
24
Bobot atom
186.21 Amu
36
164.93 Amu
99+
Volume atom
8.85 cm3 / mol
99+
18.70 cm3 / mol
24
Nomer atom jejer
Potensi Valence Electron
180.00 (-eV)
3
47.90 (-eV)
31
Constant pola
276.10 pm
99+
357.73 pm
38
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Pola C / A rasio
1.62
3
1.57
17
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
21.02 g / cm 3
12
8.79 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
18.90 g / cm3
4
8.34 g / cm3
26
Strength tensile
1,070.00 MPa
3
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
ora Sumadhiya
0.00 (Pa)
16
Meksa beluk ing 2000 K
0.00 (Pa)
29
ora Sumadhiya
situs kelenturan
nyukur pengaturan
178.00 GPA
3
26.30 GPA
28
pengaturan akeh
370.00 GPA
2
40.20 GPA
32
Young kang pengaturan
463.00 GPA
2
64.80 GPA
31
Poisson rasio
0.30
14
0.23
29
Properties Teknik liyane
ductile, malleable
ductile, malleable, Sectile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
21.02
5
8.80
35
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
193.00 nΩ · m
20
814.00 nΩ · m
4
konduktivitas listrik
0.05 10 6 / cm Ω
33
0.01 10 6 / cm Ω
99+
elektron Affinity
14.50 kJ / mol
35
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.13 J / (kg K)
39
0.16 J / (kg K)
35
Graham Kapasitas kalor
25.48 J / mol · K
38
27.15 J / mol · K
19
doyo termal
48.00 W / m · K
31
16.20 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
6.20 μm / (m · K)
99+
11.20 μm / (m · K)
35
enthalpy
Enthalpy panguapan
707.10 kJ / mol
3
241.00 kJ / mol
38
Enthalpy saka Fusion
33.05 kJ / mol
2
11.76 kJ / mol
29
Enthalpy saka atomization
791.00 kJ / mol
2
301.00 kJ / mol
36
Standard molar Entropy
36.90 J / mol.K
99+
75.30 J / mol.K
8
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