Protaktinium mungsuh rhodium
Tabel périodik
Symbol
Pa
Rh
Panggil Group
ora Sumadhiya
9
9
Panggil periode
7
5
Block
pemblokiran f
d block
Family unsur
actinide
transisi Metal
CAS Number
7440133
99+
7440166
99+
Jeneng papan Group
I4 / mmm
Fm_ 3M
Space Group Number
139.00
8
225.00
2
facts
Facts Interesting
- metal Protaktinium wis 29 isotop.
- Isotop saka Protaktinium-231 digunakake ing gegaman nuklir.
- Rhodium punika unsur paling langka metu kabeh logam non-radioaktif ing bumi.
- Rhodium punika salah siji sing paling awet lan hard logam, kang uga duwe reflectance dhuwur.
sumber
Found in Ores Uranium, Mining, Ores logam
bumi lemah ndhuwur, Found Minangka By-produk, Found in Minerals, Mining
History
sing katutup
William Crookes
William Hyde Wollaston
Discovery
ing taun 1900
ing taun 1804
turah mbrawah
Turah mbrawah Ing Universe
ora Sumadhiya
6 * 10-8 %
26
Turah mbrawah Ing Sun
~-9999 %
~0.0000002 %
25
Turah mbrawah Ing meteorit
ora Sumadhiya
0.00 %
36
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
99+
0.00 %
99+
Turah mbrawah Ing Segara
0.00 %
99+
ora Sumadhiya
ulah
Ulah lan Wuku
- Efesus saiki dikenal saka logam Protaktinium sing winates kanggo riset waé mung.
Character length exceed error
Ulah Industrial
NA
Industry Aerospace, Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
NA
wesi
Properties biologi
keracunan
Highly Toxic
NA
Saiki ing badan Human
Ora
Ora
Sang
0.00 Sang / mg dm-3
37
ora Sumadhiya
ing Bone
0.00 ppm
36
ora Sumadhiya
fisik Properties
leleh Point
1,568.00 ° C
21
1,966.00 ° C
12
Boiling Point
4,027.00 ° C
12
3,727.00 ° C
17
katon
State fisik
Solid
Solid
warna
Silver
perak Putih
luster
metallic
metallic
atose
Mohs atose
ora Sumadhiya
6.00
6
Brinell atose
ora Sumadhiya
980.00 MPa
9
Vickers atose
ora Sumadhiya
1,100.00 MPa
9
Kacepetan swara
ora Sumadhiya
4,700.00 m / s
15
Properties Optical
reflectivity
ora Sumadhiya
84.00 %
4
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
Pa
Rh
isotop
Isotop dikenal
27
12
16
23
keelektronegatifan
Pauling Elektronegativitas
1.50
27
2.28
3
Allred Rochow Elektronegativitas
1.14
28
1.45
16
Allen Elektronegativitas
ora Sumadhiya
1.56
24
Electropositivity
Pauling Electropositivity
2.50
27
1.72
99+
tenogo ionisasi
Level Energy 1st
568.00 kJ / mol
99+
719.70 kJ / mol
29
Level Energy 2
1,128.00 kJ / mol
99+
1,740.00 kJ / mol
26
Level Energy 3rd
1,814.00 kJ / mol
99+
2,997.00 kJ / mol
27
Level Energy 4
2,991.00 kJ / mol
99+
ora Sumadhiya
padha karo elektrokimia
1.72 g / amp-day
99+
1.28 g / amp-day
99+
Fungsi Work elektron
ora Sumadhiya
4.98 eV
6
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
anti Corrosion, ionisasi, Isotop radioaktif
atom Properties
Panggil atom
91
27
45
99+
Konfigurasi elektron
[Rn] 5F 2 6D 1 7s 2
[Kr] 4d 8 5S 1
Struktur Crystal
Tetragonal (TETR)
Face tengah kubik (FCC)
Crystal pola
TETR-Crystal-Structure-of-Protactinium.jpg#100
FCC-Crystal-Structure-of-Rhodium.jpg#100
atom
Jumlah proton
91
27
45
99+
Jumlah Neutron
122
21
58
99+
Jumlah Èlèktron
91
27
45
99+
Radius saka Atom
Radius atom
163.00 pm
25
134.00 pm
99+
kovalen Radius
200.00 pm
11
142.00 pm
99+
Van der Waals Radius
243.00 pm
11
200.00 pm
28
Bobot atom
231.04 Amu
24
102.91 Amu
99+
Volume atom
15.00 cm3 / mol
34
8.30 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
92.00 (-eV)
11
64.00 (-eV)
22
Constant pola
392.50 pm
23
380.34 pm
27
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
15.37 g / cm 3
20
12.41 g / cm 3
28
Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya
10.70 g / cm3
14
Strength tensile
ora Sumadhiya
951.00 MPa
5
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 2000 K
ora Sumadhiya
0.02 (Pa)
19
situs kelenturan
nyukur pengaturan
ora Sumadhiya
150.00 GPA
6
pengaturan akeh
ora Sumadhiya
275.00 GPA
5
Young kang pengaturan
ora Sumadhiya
380.00 GPA
5
Poisson rasio
ora Sumadhiya
0.26
22
Properties Teknik liyane
Unknown
malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
15.37
12
12.41
20
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
177.00 nΩ · m
21
43.30 nΩ · m
99+
konduktivitas listrik
0.05 10 6 / cm Ω
34
0.21 10 6 / cm Ω
8
elektron Affinity
ora Sumadhiya
109.70 kJ / mol
7
termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
0.24 J / (kg K)
22
Graham Kapasitas kalor
ora Sumadhiya
24.98 J / mol · K
99+
doyo termal
47.00 W / m · K
32
150.00 W / m · K
9
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
9.90 μm / (m · K)
40
8.20 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
ora Sumadhiya
495.40 kJ / mol
12
Enthalpy saka Fusion
12.34 kJ / mol
28
21.76 kJ / mol
10
Enthalpy saka atomization
ora Sumadhiya
556.50 kJ / mol
12
Standard molar Entropy
198.10 J / mol.K
1
31.50 J / mol.K
99+
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