Niobium mungsuh Praseodymium
Tabel périodik
Symbol
Nb
Pr
Panggil Group
5
13
ora Sumadhiya
Panggil periode
5
6
Block
d block
pemblokiran f
Family unsur
transisi Metal
lanthanide
CAS Number
7440031
99+
7440100
99+
Jeneng papan Group
3M Im_
P63 / mmc
Space Group Number
229.00
1
194.00
5
facts
Facts Interesting
- metal Niobium iki digunakake kanggo njaluk disebut Columbium ing past.
- metal Niobium ketemu ing alam bebas (turah mbrawah).
- Praseodymium logam sintetik diprodhuksi logam.
- Praseodymium digunakake minangka bahan bakar kanggo generator radioaktif.
sumber
Miturut-produk saka Tin Extraction, Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Charles Hatchett
Not Available
Discovery
ing taun 1801
ing taun 1885
turah mbrawah
Turah mbrawah Ing Universe
2 * 10-7 %
22
2 * 10-7 %
22
Turah mbrawah Ing Sun
~0.0000004 %
23
~0.0000001 %
26
Turah mbrawah Ing meteorit
0.00 %
35
0.00 %
40
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
25
0.00 %
27
Turah mbrawah Ing Segara
0.00 %
34
0.00 %
39
ulah
Ulah lan Wuku
Character length exceed error
- Gunakake utama Praseodymium kalebu wesi. Praseodymium -Magnesium alloy digunakake ing mesin pesawat amarga kekuatan dhuwur.
- metal iki uga digunakake nalika nggawe wesi sembrani permanen.
Ulah Industrial
Industry Aerospace, Industry amunisi, Industry Listrik, Industry Elektronik
Industri Kimia
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi
Properties biologi
keracunan
Low Toxic
arep Toxic
Saiki ing badan Human
Ya
Ora
Sang
0.01 Sang / mg dm-3
25
ora Sumadhiya
ing Bone
0.07 ppm
25
ora Sumadhiya
fisik Properties
leleh Point
2,468.00 ° C
6
935.00 ° C
99+
Boiling Point
2,468.00 ° C
99+
3,130.00 ° C
27
katon
State fisik
Solid
Solid
warna
Gray
klawu putih
luster
metallic
metallic
atose
Mohs atose
6.00
6
ora Sumadhiya
Brinell atose
735.00 MPa
14
481.00 MPa
24
Vickers atose
870.00 MPa
12
400.00 MPa
25
Kacepetan swara
3,480.00 m / s
21
2,280.00 m / s
40
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
Nb
Pr
isotop
Isotop dikenal
17
22
31
8
keelektronegatifan
Pauling Elektronegativitas
1.60
23
1.13
99+
Sanderson Elektronegativitas
1.42
16
ora Sumadhiya
Allred Rochow Elektronegativitas
1.23
25
1.07
32
Allen Elektronegativitas
1.41
31
ora Sumadhiya
Electropositivity
Pauling Electropositivity
2.40
31
2.87
12
tenogo ionisasi
Level Energy 1st
652.10 kJ / mol
99+
527.00 kJ / mol
99+
Level Energy 2
1,380.00 kJ / mol
99+
1,020.00 kJ / mol
99+
Level Energy 3rd
2,416.00 kJ / mol
99+
2,086.00 kJ / mol
99+
Level Energy 4
3,700.00 kJ / mol
99+
3,761.00 kJ / mol
99+
Level Energy 5th
4,877.00 kJ / mol
36
5,551.00 kJ / mol
29
Level Energy 6th
9,847.00 kJ / mol
11
ora Sumadhiya
tingkat Energy 7
12,100.00 kJ / mol
14
ora Sumadhiya
padha karo elektrokimia
0.69 g / amp-day
99+
1.75 g / amp-day
40
Fungsi Work elektron
4.30 eV
18
2.70 eV
99+
Properties Kimia liyane
anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
anti Corrosion, ionisasi, Isotop radioaktif
atom Properties
Panggil atom
41
99+
59
99+
Konfigurasi elektron
[Kr] 4d 4 5S 1
[Xe] 4F 3 6s 2
Struktur Crystal
Body tengah kubik (Bcc)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
BCC-Crystal-Structure-.jpg#100
HCP-Crystal-Structure-of-Praseodymium.jpg#100
atom
Jumlah proton
41
99+
59
99+
Jumlah Neutron
52
99+
82
99+
Jumlah Èlèktron
41
99+
59
99+
Radius saka Atom
Radius atom
146.00 pm
35
182.00 pm
11
kovalen Radius
164.00 pm
28
203.00 pm
9
Van der Waals Radius
200.00 pm
28
239.00 pm
14
Bobot atom
92.91 Amu
99+
140.91 Amu
99+
Volume atom
10.87 cm3 / mol
99+
20.80 cm3 / mol
15
Nomer atom jejer
Potensi Valence Electron
104.00 (-eV)
8
42.64 (-eV)
99+
Constant pola
330.04 pm
99+
367.25 pm
29
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
1.61
4
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
8.57 g / cm 3
99+
6.77 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya
6.50 g / cm3
39
Strength tensile
330.00 MPa
12
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
ora Sumadhiya
0.00 (Pa)
25
Meksa beluk ing 2000 K
0.00 (Pa)
27
13.20 (Pa)
7
situs kelenturan
nyukur pengaturan
38.00 GPA
19
14.80 GPA
39
pengaturan akeh
170.00 GPA
10
28.80 GPA
40
Young kang pengaturan
105.00 GPA
20
37.30 GPA
99+
Poisson rasio
0.40
4
0.28
16
Properties Teknik liyane
ductile, malleable
ductile, malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
8.57
37
6.77
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
152.00 nΩ · m
23
0.70 nΩ · m
99+
konduktivitas listrik
0.07 10 6 / cm Ω
28
0.01 10 6 / cm Ω
99+
elektron Affinity
86.10 kJ / mol
12
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.26 J / (kg K)
20
0.19 J / (kg K)
32
Graham Kapasitas kalor
24.60 J / mol · K
99+
27.20 J / mol · K
18
doyo termal
53.70 W / m · K
29
12.50 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
7.30 μm / (m · K)
99+
6.70 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
696.60 kJ / mol
4
296.80 kJ / mol
29
Enthalpy saka Fusion
27.20 kJ / mol
6
6.89 kJ / mol
99+
Enthalpy saka atomization
745.00 kJ / mol
4
368.00 kJ / mol
24
Standard molar Entropy
36.40 J / mol.K
99+
73.20 J / mol.K
10
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