iridium mungsuh Holmium
Tabel périodik
Symbol
Ir
Ho
Panggil Group
9
9
ora Sumadhiya
Panggil periode
6
6
Block
d block
pemblokiran f
Family unsur
transisi Metal
lanthanide
CAS Number
7439885
99+
7440600
29
Jeneng papan Group
Fm_ 3M
P63 / mmc
Space Group Number
225.00
2
194.00
5
facts
Facts Interesting
- unsur Iridium occurs minangka wesi alam Platinum lan Osmium.
- unsur Iridium dikenal minangka paling metal resistance karat.
- 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
Smithson Tennant
Marc Delafontaine
Discovery
ing 1803
ing taun 1878
turah mbrawah
Turah mbrawah Ing Universe
2 * 10-7 %
22
5 * 10-8 %
27
Turah mbrawah Ing Sun
~0.0000002 %
25
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
29
0.00 %
99+
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
99+
0.00 %
38
Turah mbrawah Ing Segara
ora Sumadhiya
0.00 %
99+
ulah
Ulah lan Wuku
- Iridium duwe sifat anti karat lan digunakake ing alloy khusus karo logam Osmium lan alloy sing digunakake ing tips pen lan Compass bantalan poros.
- 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 automobile, Industry Listrik, Industry Elektronik
NA
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi, Nuclear Riset
Properties biologi
keracunan
Toxic
Low Toxic
Saiki ing badan Human
Ya
Ora
fisik Properties
leleh Point
2,410.00 ° C
7
1,461.00 ° C
30
Boiling Point
4,527.00 ° C
10
2,600.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
metallic
metallic
atose
Mohs atose
6.50
5
ora Sumadhiya
Brinell atose
1,670.00 MPa
5
746.00 MPa
13
Vickers atose
1,760.00 MPa
3
481.00 MPa
23
Kacepetan swara
4,825.00 m / s
13
2,760.00 m / s
30
Properties Optical
reflectivity
78.00 %
6
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
Ir
Ho
isotop
Isotop dikenal
34
5
34
5
keelektronegatifan
Pauling Elektronegativitas
2.20
4
1.23
37
Allred Rochow Elektronegativitas
1.55
11
1.10
30
Allen Elektronegativitas
1.68
17
ora Sumadhiya
Electropositivity
Pauling Electropositivity
1.80
99+
2.77
17
tenogo ionisasi
Level Energy 1st
880.00 kJ / mol
9
581.00 kJ / mol
99+
Level Energy 2
1,600.00 kJ / mol
35
1,140.00 kJ / mol
99+
Level Energy 3rd
ora Sumadhiya
2,204.00 kJ / mol
99+
Level Energy 4
ora Sumadhiya
4,100.00 kJ / mol
34
padha karo elektrokimia
1.14 g / amp-day
99+
2.02 g / amp-day
29
Fungsi Work elektron
4.55 eV
13
ora Sumadhiya
Properties Kimia liyane
kebakar, ionisasi, Isotop radioaktif, Radioaktif
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
77
39
67
99+
Konfigurasi elektron
[Xe] 4F 14 5d 7 6s 2
[Xe] 4F 11 6s 2
Struktur Crystal
Face tengah kubik (FCC)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
FCC-Crystal-Structure-of-Iridium.jpg#100
HCP-Crystal-Structure-of-Holmium.jpg#100
atom
Jumlah proton
74
99+
67
99+
Jumlah Neutron
110
27
98
34
Jumlah Èlèktron
74
99+
67
99+
Radius saka Atom
Radius atom
136.00 pm
99+
176.00 pm
18
kovalen Radius
141.00 pm
99+
192.00 pm
17
Van der Waals Radius
202.00 pm
27
216.00 pm
24
Bobot atom
192.22 Amu
34
164.93 Amu
99+
Volume atom
9.53 cm3 / mol
99+
18.70 cm3 / mol
24
Nomer atom jejer
Potensi Valence Electron
140.00 (-eV)
5
47.90 (-eV)
31
Constant pola
383.90 pm
26
357.73 pm
38
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
1.57
17
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
22.56 g / cm 3
10
8.79 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
19.00 g / cm3
3
8.34 g / cm3
26
Strength tensile
2,000.00 MPa
2
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)
25
ora Sumadhiya
situs kelenturan
nyukur pengaturan
210.00 GPA
2
26.30 GPA
28
pengaturan akeh
320.00 GPA
3
40.20 GPA
32
Young kang pengaturan
528.00 GPA
1
64.80 GPA
31
Poisson rasio
0.26
22
0.23
29
Properties Teknik liyane
NA
ductile, malleable, Sectile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
21.78
3
8.80
35
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
47.10 nΩ · m
99+
814.00 nΩ · m
4
konduktivitas listrik
0.19 10 6 / cm Ω
10
0.01 10 6 / cm Ω
99+
elektron Affinity
151.00 kJ / mol
4
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.13 J / (kg K)
39
0.16 J / (kg K)
35
Graham Kapasitas kalor
25.10 J / mol · K
99+
27.15 J / mol · K
19
doyo termal
147.00 W / m · K
10
16.20 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
6.40 μm / (m · K)
99+
11.20 μm / (m · K)
35
enthalpy
Enthalpy panguapan
799.10 kJ / mol
1
241.00 kJ / mol
38
Enthalpy saka Fusion
35.23 kJ / mol
1
11.76 kJ / mol
29
Enthalpy saka atomization
837.00 kJ / mol
1
301.00 kJ / mol
36
Standard molar Entropy
35.50 J / mol.K
99+
75.30 J / mol.K
8
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