Protaktinium mungsuh Niobium
Tabel périodik
Symbol
Pa
Nb
Panggil Group
ora Sumadhiya
5
13
Panggil periode
7
5
Block
pemblokiran f
d block
Family unsur
actinide
transisi Metal
CAS Number
7440133
99+
7440031
99+
Jeneng papan Group
I4 / mmm
3M Im_
Space Group Number
139.00
8
229.00
1
facts
Facts Interesting
- metal Protaktinium wis 29 isotop.
- Isotop saka Protaktinium-231 digunakake ing gegaman nuklir.
- metal Niobium iki digunakake kanggo njaluk disebut Columbium ing past.
- metal Niobium ketemu ing alam bebas (turah mbrawah).
sumber
Found in Ores Uranium, Mining, Ores logam
Miturut-produk saka Tin Extraction, Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
William Crookes
Charles Hatchett
Discovery
ing taun 1900
ing taun 1801
turah mbrawah
Turah mbrawah Ing Universe
ora Sumadhiya
2 * 10-7 %
22
Turah mbrawah Ing Sun
~-9999 %
~0.0000004 %
23
Turah mbrawah Ing meteorit
ora Sumadhiya
0.00 %
35
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
99+
0.00 %
25
Turah mbrawah Ing Segara
0.00 %
99+
0.00 %
34
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 amunisi, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
NA
wesi
Properties biologi
keracunan
Highly Toxic
Low Toxic
Saiki ing badan Human
Ora
Ya
Sang
0.00 Sang / mg dm-3
37
0.01 Sang / mg dm-3
25
ing Bone
0.00 ppm
36
0.07 ppm
25
fisik Properties
leleh Point
1,568.00 ° C
21
2,468.00 ° C
6
Boiling Point
4,027.00 ° C
12
2,468.00 ° C
99+
katon
State fisik
Solid
Solid
warna
Silver
Gray
luster
metallic
metallic
atose
Mohs atose
ora Sumadhiya
6.00
6
Brinell atose
ora Sumadhiya
735.00 MPa
14
Vickers atose
ora Sumadhiya
870.00 MPa
12
Kacepetan swara
ora Sumadhiya
3,480.00 m / s
21
Properties Optical
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
Nb
isotop
Isotop dikenal
27
12
17
22
keelektronegatifan
Pauling Elektronegativitas
1.50
27
1.60
23
Sanderson Elektronegativitas
ora Sumadhiya
1.42
16
Allred Rochow Elektronegativitas
1.14
28
1.23
25
Allen Elektronegativitas
ora Sumadhiya
1.41
31
Electropositivity
Pauling Electropositivity
2.50
27
2.40
31
tenogo ionisasi
Level Energy 1st
568.00 kJ / mol
99+
652.10 kJ / mol
99+
Level Energy 2
1,128.00 kJ / mol
99+
1,380.00 kJ / mol
99+
Level Energy 3rd
1,814.00 kJ / mol
99+
2,416.00 kJ / mol
99+
Level Energy 4
2,991.00 kJ / mol
99+
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
1.72 g / amp-day
99+
0.69 g / amp-day
99+
Fungsi Work elektron
ora Sumadhiya
4.30 eV
18
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
91
27
41
99+
Konfigurasi elektron
[Rn] 5F 2 6D 1 7s 2
[Kr] 4d 4 5S 1
Struktur Crystal
Tetragonal (TETR)
Body tengah kubik (Bcc)
Crystal pola
TETR-Crystal-Structure-of-Protactinium.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
91
27
41
99+
Jumlah Neutron
122
21
52
99+
Jumlah Èlèktron
91
27
41
99+
Radius saka Atom
Radius atom
163.00 pm
25
146.00 pm
35
kovalen Radius
200.00 pm
11
164.00 pm
28
Van der Waals Radius
243.00 pm
11
200.00 pm
28
Bobot atom
231.04 Amu
24
92.91 Amu
99+
Volume atom
15.00 cm3 / mol
34
10.87 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
92.00 (-eV)
11
104.00 (-eV)
8
Constant pola
392.50 pm
23
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
15.37 g / cm 3
20
8.57 g / cm 3
99+
Strength tensile
ora Sumadhiya
330.00 MPa
12
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 2000 K
ora Sumadhiya
0.00 (Pa)
27
situs kelenturan
nyukur pengaturan
ora Sumadhiya
38.00 GPA
19
pengaturan akeh
ora Sumadhiya
170.00 GPA
10
Young kang pengaturan
ora Sumadhiya
105.00 GPA
20
Poisson rasio
ora Sumadhiya
0.40
4
Properties Teknik liyane
Unknown
ductile, malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
15.37
12
8.57
37
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
177.00 nΩ · m
21
152.00 nΩ · m
23
konduktivitas listrik
0.05 10 6 / cm Ω
34
0.07 10 6 / cm Ω
28
elektron Affinity
ora Sumadhiya
86.10 kJ / mol
12
termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
0.26 J / (kg K)
20
Graham Kapasitas kalor
ora Sumadhiya
24.60 J / mol · K
99+
doyo termal
47.00 W / m · K
32
53.70 W / m · K
29
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
9.90 μm / (m · K)
40
7.30 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
ora Sumadhiya
696.60 kJ / mol
4
Enthalpy saka Fusion
12.34 kJ / mol
28
27.20 kJ / mol
6
Enthalpy saka atomization
ora Sumadhiya
745.00 kJ / mol
4
Standard molar Entropy
198.10 J / mol.K
1
36.40 J / mol.K
99+
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