mbandhingaké iridium lan Niobium
Tabel périodik
Symbol
Ir
Nb
Panggil Group
9
9
5
13
Panggil periode
6
5
Block
d block
d block
Family unsur
transisi Metal
transisi Metal
CAS Number
7439885
99+
7440031
99+
Jeneng papan Group
Fm_ 3M
3M Im_
Space Group Number
225.00
2
229.00
1
facts
Facts Interesting
- unsur Iridium occurs minangka wesi alam Platinum lan Osmium.
- unsur Iridium dikenal minangka paling metal resistance karat.
- metal Niobium iki digunakake kanggo njaluk disebut Columbium ing past.
- metal Niobium ketemu ing alam bebas (turah mbrawah).
sumber
Found in Minerals, Mining, Ores saka Minerals
Miturut-produk saka Tin Extraction, Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Smithson Tennant
Charles Hatchett
Discovery
ing 1803
ing taun 1801
turah mbrawah
Turah mbrawah Ing Universe
2 * 10-7 %
22
2 * 10-7 %
22
Turah mbrawah Ing Sun
~0.0000002 %
25
~0.0000004 %
23
Turah mbrawah Ing meteorit
0.00 %
29
0.00 %
35
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
99+
0.00 %
25
Turah mbrawah Ing Segara
ora Sumadhiya
0.00 %
34
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.
Character length exceed error
Ulah Industrial
Industry automobile, Industry Listrik, Industry Elektronik
Industry Aerospace, Industry amunisi, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi
Properties biologi
keracunan
Toxic
Low Toxic
Saiki ing badan Human
Ya
Ya
Sang
ora Sumadhiya
0.01 Sang / mg dm-3
25
ing Bone
ora Sumadhiya
0.07 ppm
25
fisik Properties
leleh Point
2,410.00 ° C
7
2,468.00 ° C
6
Boiling Point
4,527.00 ° C
10
2,468.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
Gray
luster
metallic
metallic
atose
Mohs atose
6.50
5
6.00
6
Brinell atose
1,670.00 MPa
5
735.00 MPa
14
Vickers atose
1,760.00 MPa
3
870.00 MPa
12
Kacepetan swara
4,825.00 m / s
13
3,480.00 m / s
21
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
Nb
isotop
Isotop dikenal
34
5
17
22
keelektronegatifan
Pauling Elektronegativitas
2.20
4
1.60
23
Sanderson Elektronegativitas
ora Sumadhiya
1.42
16
Allred Rochow Elektronegativitas
1.55
11
1.23
25
Allen Elektronegativitas
1.68
17
1.41
31
Electropositivity
Pauling Electropositivity
1.80
99+
2.40
31
tenogo ionisasi
Level Energy 1st
880.00 kJ / mol
9
652.10 kJ / mol
99+
Level Energy 2
1,600.00 kJ / mol
35
1,380.00 kJ / mol
99+
Level Energy 3rd
ora Sumadhiya
2,416.00 kJ / mol
99+
Level Energy 4
ora Sumadhiya
3,700.00 kJ / mol
99+
Level Energy 5th
ora Sumadhiya
4,877.00 kJ / mol
36
Level Energy 6th
ora Sumadhiya
9,847.00 kJ / mol
11
tingkat Energy 7
ora Sumadhiya
12,100.00 kJ / mol
14
padha karo elektrokimia
1.14 g / amp-day
99+
0.69 g / amp-day
99+
Fungsi Work elektron
4.55 eV
13
4.30 eV
18
Properties Kimia liyane
kebakar, ionisasi, Isotop radioaktif, Radioaktif
anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
77
39
41
99+
Konfigurasi elektron
[Xe] 4F 14 5d 7 6s 2
[Kr] 4d 4 5S 1
Struktur Crystal
Face tengah kubik (FCC)
Body tengah kubik (Bcc)
Crystal pola
FCC-Crystal-Structure-of-Iridium.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
74
99+
41
99+
Jumlah Neutron
110
27
52
99+
Jumlah Èlèktron
74
99+
41
99+
Radius saka Atom
Radius atom
136.00 pm
99+
146.00 pm
35
kovalen Radius
141.00 pm
99+
164.00 pm
28
Van der Waals Radius
202.00 pm
27
200.00 pm
28
Bobot atom
192.22 Amu
34
92.91 Amu
99+
Volume atom
9.53 cm3 / mol
99+
10.87 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
140.00 (-eV)
5
104.00 (-eV)
8
Constant pola
383.90 pm
26
330.04 pm
99+
pola Angles
π/2, π/2, π/2
π/2, π/2, π/2
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
22.56 g / cm 3
10
8.57 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
19.00 g / cm3
3
ora Sumadhiya
Strength tensile
2,000.00 MPa
2
330.00 MPa
12
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 2000 K
0.00 (Pa)
25
0.00 (Pa)
27
situs kelenturan
nyukur pengaturan
210.00 GPA
2
38.00 GPA
19
pengaturan akeh
320.00 GPA
3
170.00 GPA
10
Young kang pengaturan
528.00 GPA
1
105.00 GPA
20
Poisson rasio
0.26
22
0.40
4
Properties Teknik liyane
NA
ductile, malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
21.78
3
8.57
37
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
47.10 nΩ · m
99+
152.00 nΩ · m
23
konduktivitas listrik
0.19 10 6 / cm Ω
10
0.07 10 6 / cm Ω
28
elektron Affinity
151.00 kJ / mol
4
86.10 kJ / mol
12
termal Properties
Kalor tartamtu
0.13 J / (kg K)
39
0.26 J / (kg K)
20
Graham Kapasitas kalor
25.10 J / mol · K
99+
24.60 J / mol · K
99+
doyo termal
147.00 W / m · K
10
53.70 W / m · K
29
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
6.40 μm / (m · K)
99+
7.30 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
799.10 kJ / mol
1
696.60 kJ / mol
4
Enthalpy saka Fusion
35.23 kJ / mol
1
27.20 kJ / mol
6
Enthalpy saka atomization
837.00 kJ / mol
1
745.00 kJ / mol
4
Standard molar Entropy
35.50 J / mol.K
99+
36.40 J / mol.K
99+
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