polonium mungsuh iridium
Tabel périodik
Symbol
Po
Ir
Panggil Group
16
2
9
9
Panggil periode
6
6
Block
p pemblokiran
d block
Family unsur
Transisi Post-
transisi Metal
CAS Number
7440086
99+
7439885
99+
Jeneng papan Group
Pm-3M
Fm_ 3M
Space Group Number
221.00
3
225.00
2
facts
Facts Interesting
- Polonium unsur radioaktif sing pisanan ditemokaké.
- unsur polonium lan senyawa Highly radioaktif.
- Sawijining logam campuran karo Beryllium menehi sumber neutron.
- unsur Iridium occurs minangka wesi alam Platinum lan Osmium.
- unsur Iridium dikenal minangka paling metal resistance karat.
sumber
Mining, Ores logam
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Pierre Curie and Marie Curie
Smithson Tennant
Discovery
ing taun 1898
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+
Turah mbrawah Ing Segara
0.00 %
99+
ora Sumadhiya
ulah
Ulah lan Wuku
- Polonium logam allotropes beda, kang digunakake ing piranti antistatic lan kanggo riset waé.
- A 1 gram saka Polonium bisa tekan suhu 500 ° C, Empu kang digunakake minangka sumber panas kanggo peralatan papan.
- 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
Industry Aerospace, Industry amunisi
Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi
Properties biologi
keracunan
Highly Toxic
Toxic
Saiki ing badan Human
Ora
Ya
Sang
0.00 Sang / mg dm-3
37
ora Sumadhiya
ing Bone
0.00 ppm
36
ora Sumadhiya
fisik Properties
leleh Point
254.00 ° C
99+
2,410.00 ° C
7
Boiling Point
962.00 ° C
99+
4,527.00 ° C
10
katon
State fisik
Solid
Solid
warna
Silver
perak Putih
luster
NA
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
Ya
Ora
α allotropes
α-polonium
ora Sumadhiya
β allotropes
β-polonium
ora Sumadhiya
γ allotropes
ora Sumadhiya
ora Sumadhiya
Kimia Properties
Formula Kimia
Po
Ir
isotop
Isotop dikenal
29
10
34
5
keelektronegatifan
Pauling Elektronegativitas
2.00
7
2.20
4
Allred Rochow Elektronegativitas
1.76
2
1.55
11
Mulliken-Jaffe Elektronegativitas
2.48
1
ora Sumadhiya
Allen Elektronegativitas
2.19
2
1.68
17
Electropositivity
Pauling Electropositivity
2.00
99+
1.80
99+
tenogo ionisasi
Level Energy 1st
812.10 kJ / mol
14
880.00 kJ / mol
9
Level Energy 2
ora Sumadhiya
1,600.00 kJ / mol
35
padha karo elektrokimia
3.90 g / amp-day
8
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
84
32
77
39
Konfigurasi elektron
[Xe] 4F 14 5d 10 6s 2 6p 4
[Xe] 4F 14 5d 7 6s 2
Struktur Crystal
Pénguapan (Mon)
Face tengah kubik (FCC)
Crystal pola
MON-Crystal-Structure-of-Polonium.jpg#100
FCC-Crystal-Structure-of-Iridium.jpg#100
atom
Jumlah proton
84
32
74
99+
Jumlah Neutron
125
19
110
27
Jumlah Èlèktron
84
32
74
99+
Radius saka Atom
Radius atom
168.00 pm
23
136.00 pm
99+
kovalen Radius
140.00 pm
99+
141.00 pm
99+
Van der Waals Radius
197.00 pm
29
202.00 pm
27
Bobot atom
209.00 Amu
28
192.22 Amu
34
Volume atom
22.23 cm3 / mol
13
9.53 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
ora Sumadhiya
140.00 (-eV)
5
Constant pola
335.90 pm
99+
383.90 pm
26
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
9.20 g / cm 3
99+
22.56 g / cm 3
10
Kapadhetan Nalika Liquid (ing mp)
9.40 g / cm3
19
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
ora Sumadhiya
210.00 GPA
2
pengaturan akeh
ora Sumadhiya
320.00 GPA
3
Young kang pengaturan
ora Sumadhiya
528.00 GPA
1
Poisson rasio
ora Sumadhiya
0.26
22
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
9.32
31
21.78
3
Nindakake Magnetic
nonmagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.40 nΩ · m
99+
47.10 nΩ · m
99+
konduktivitas listrik
0.02 10 6 / cm Ω
99+
0.19 10 6 / cm Ω
10
elektron Affinity
183.30 kJ / mol
3
151.00 kJ / mol
4
termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
0.13 J / (kg K)
39
Graham Kapasitas kalor
26.40 J / mol · K
28
25.10 J / mol · K
99+
doyo termal
20.00 W / m · K
99+
147.00 W / m · K
10
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
23.50 μm / (m · K)
16
6.40 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
60.30 kJ / mol
99+
799.10 kJ / mol
1
Enthalpy saka Fusion
13.00 kJ / mol
26
35.23 kJ / mol
1
Enthalpy saka atomization
134.00 kJ / mol
99+
837.00 kJ / mol
1
Standard molar Entropy
ora Sumadhiya
35.50 J / mol.K
99+
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