prometium mungsuh iridium
Tabel périodik
Symbol
Pm
Ir
Panggil Group
ora Sumadhiya
9
9
Panggil periode
6
6
Block
pemblokiran f
d block
Family unsur
lanthanide
transisi Metal
CAS Number
7440122
99+
7439885
99+
Jeneng papan Group
ora Sumadhiya
Fm_ 3M
Space Group Number
ora Sumadhiya
225.00
2
facts
Facts Interesting
- metal Prometium ditemokaké ing pitchblende.
- Prometium logam logam Highly radioaktif.
- unsur Iridium occurs minangka wesi alam Platinum lan Osmium.
- unsur Iridium dikenal minangka paling metal resistance karat.
sumber
Found in Minerals, Mining
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Smithson Tennant
Discovery
ing taun 1942
ing 1803
turah mbrawah
Turah mbrawah Ing Universe
ora Sumadhiya
2 * 10-7 %
22
Turah mbrawah Ing Sun
~-9999 %
~0.0000002 %
25
Turah mbrawah Ing meteorit
ora Sumadhiya
0.00 %
29
Turah mbrawah Ing bumi lemah ndhuwur
ora Sumadhiya
0.00 %
99+
ulah
Ulah lan Wuku
- Kang digunakake kanggo riset waé. jumlah cilik saka logam digunakake ing batre atom.
- bosok radioaktif sawijining digunakake kanggo Phosphor kanggo menehi mati lampu. Lampu cemlorot diowahi dadi listrik.
- Iridium duwe sifat anti karat lan digunakake ing alloy khusus karo logam Osmium lan alloy sing digunakake ing tips pen lan Compass bantalan poros.
Ulah Industrial
NA
Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
NA
wesi
Properties biologi
keracunan
non Toxic
Toxic
Saiki ing badan Human
Ora
Ya
Sang
0.00 Sang / mg dm-3
37
ora Sumadhiya
fisik Properties
leleh Point
1,042.00 ° C
99+
2,410.00 ° C
7
Boiling Point
3,000.00 ° C
31
4,527.00 ° C
10
katon
State fisik
Solid
Solid
warna
Unknown
perak Putih
luster
metallic
metallic
atose
Mohs atose
ora Sumadhiya
6.50
5
Brinell atose
ora Sumadhiya
1,670.00 MPa
5
Vickers atose
ora Sumadhiya
1,760.00 MPa
3
Kacepetan swara
ora Sumadhiya
4,825.00 m / s
13
Properties Optical
reflectivity
ora Sumadhiya
78.00 %
6
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
Pm
Ir
isotop
Isotop dikenal
27
12
34
5
keelektronegatifan
Pauling Elektronegativitas
ora Sumadhiya
2.20
4
Allred Rochow Elektronegativitas
1.07
32
1.55
11
Allen Elektronegativitas
ora Sumadhiya
1.68
17
Electropositivity
Pauling Electropositivity
ora Sumadhiya
1.80
99+
tenogo ionisasi
Level Energy 1st
540.00 kJ / mol
99+
880.00 kJ / mol
9
Level Energy 2
1,050.00 kJ / mol
99+
1,600.00 kJ / mol
35
Level Energy 3rd
2,150.00 kJ / mol
99+
ora Sumadhiya
Level Energy 4
3,970.00 kJ / mol
38
ora Sumadhiya
padha karo elektrokimia
1.80 g / amp-day
36
1.14 g / amp-day
99+
Fungsi Work elektron
ora Sumadhiya
4.55 eV
13
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
kebakar, ionisasi, Isotop radioaktif, Radioaktif
atom Properties
Panggil atom
61
99+
77
39
Konfigurasi elektron
[Xe] 4F 5 6s 2
[Xe] 4F 14 5d 7 6s 2
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Face tengah kubik (FCC)
Crystal pola
DHCP-Crystal-Structure-of-Promethium.jpg#100
FCC-Crystal-Structure-of-Iridium.jpg#100
atom
Jumlah proton
61
99+
74
99+
Jumlah Neutron
84
40
110
27
Jumlah Èlèktron
61
99+
74
99+
Radius saka Atom
Radius atom
183.00 pm
10
136.00 pm
99+
kovalen Radius
199.00 pm
12
141.00 pm
99+
Van der Waals Radius
236.00 pm
16
202.00 pm
27
Bobot atom
145.00 Amu
99+
192.22 Amu
34
Volume atom
22.39 cm3 / mol
12
9.53 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
44.10 (-eV)
39
140.00 (-eV)
5
Constant pola
ora Sumadhiya
383.90 pm
26
pola Angles
Unknown
π/2, π/2, π/2
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
7.26 g / cm 3
99+
22.56 g / cm 3
10
Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya
19.00 g / cm3
3
Strength tensile
ora Sumadhiya
2,000.00 MPa
2
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 2000 K
ora Sumadhiya
0.00 (Pa)
25
situs kelenturan
nyukur pengaturan
18.00 GPA
36
210.00 GPA
2
pengaturan akeh
33.00 GPA
36
320.00 GPA
3
Young kang pengaturan
46.00 GPA
38
528.00 GPA
1
Poisson rasio
0.28
17
0.26
22
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
7.26
99+
21.78
3
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.75 nΩ · m
99+
47.10 nΩ · m
99+
konduktivitas listrik
ora Sumadhiya
0.19 10 6 / cm Ω
10
elektron Affinity
50.00 kJ / mol
21
151.00 kJ / mol
4
termal Properties
Kalor tartamtu
0.18 J / (kg K)
33
0.13 J / (kg K)
39
Graham Kapasitas kalor
ora Sumadhiya
25.10 J / mol · K
99+
doyo termal
17.90 W / m · K
99+
147.00 W / m · K
10
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
9.00 μm / (m · K)
99+
6.40 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
ora Sumadhiya
799.10 kJ / mol
1
Enthalpy saka Fusion
7.50 kJ / mol
99+
35.23 kJ / mol
1
Enthalpy saka atomization
310.00 kJ / mol
34
837.00 kJ / mol
1
Standard molar Entropy
ora Sumadhiya
35.50 J / mol.K
99+
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