Europium mungsuh Praseodymium
Tabel périodik
Symbol
Eu
Pr
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
6
6
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
lanthanide
CAS Number
7440531
34
7440100
99+
Jeneng papan Group
3M Im_
P63 / mmc
Space Group Number
229.00
1
194.00
5
facts
Facts Interesting
ora Cepak
- Praseodymium logam sintetik diprodhuksi logam.
- Praseodymium digunakake minangka bahan bakar kanggo generator radioaktif.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Eugène-Anatole Demarçay
Not Available
Discovery
ing taun 1896
ing taun 1885
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-8 %
27
2 * 10-7 %
22
Turah mbrawah Ing Sun
~0.00000005 %
27
~0.0000001 %
26
Turah mbrawah Ing meteorit
0.00 %
99+
0.00 %
40
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
36
0.00 %
27
Turah mbrawah Ing Segara
0.00 %
99+
0.00 %
39
ulah
Ulah lan Wuku
- logam Europium utama Efesus ing printing saka dhuwit kertas Euro. cathetan iki cemlorot abang ing lampu UV.
- Kang digunakake ing bolam lampu kurang energi.
- 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
Industri Kimia
Industri Kimia
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi
Properties biologi
keracunan
non Toxic
arep Toxic
Saiki ing badan Human
Ya
Ora
fisik Properties
leleh Point
822.00 ° C
99+
935.00 ° C
99+
Boiling Point
1,597.00 ° C
99+
3,130.00 ° C
27
katon
State fisik
Solid
Solid
warna
perak Putih
klawu putih
luster
lustrous
metallic
atose
Brinell atose
ora Sumadhiya
481.00 MPa
24
Vickers atose
167.00 MPa
34
400.00 MPa
25
Kacepetan swara
ora Sumadhiya
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
Eu
Pr
isotop
Isotop dikenal
31
8
31
8
keelektronegatifan
Pauling Elektronegativitas
1.20
39
1.13
99+
Sanderson Elektronegativitas
1.01
22
ora Sumadhiya
Allred Rochow Elektronegativitas
ora Sumadhiya
1.07
32
Electropositivity
Pauling Electropositivity
ora Sumadhiya
2.87
12
tenogo ionisasi
Level Energy 1st
547.10 kJ / mol
99+
527.00 kJ / mol
99+
Level Energy 2
1,085.00 kJ / mol
99+
1,020.00 kJ / mol
99+
Level Energy 3rd
2,404.00 kJ / mol
99+
2,086.00 kJ / mol
99+
Level Energy 4
4,120.00 kJ / mol
33
3,761.00 kJ / mol
99+
Level Energy 5th
ora Sumadhiya
5,551.00 kJ / mol
29
padha karo elektrokimia
1.89 g / amp-day
33
1.75 g / amp-day
40
Fungsi Work elektron
2.50 eV
99+
2.70 eV
99+
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
anti Corrosion, ionisasi, Isotop radioaktif
atom Properties
Panggil atom
63
99+
59
99+
Konfigurasi elektron
[Xe] 4F 7 6s 2
[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
63
99+
59
99+
Jumlah Neutron
89
38
82
99+
Jumlah Èlèktron
63
99+
59
99+
Radius saka Atom
Radius atom
180.00 pm
14
182.00 pm
11
kovalen Radius
198.00 pm
13
203.00 pm
9
Van der Waals Radius
233.00 pm
18
239.00 pm
14
Bobot atom
151.96 Amu
99+
140.91 Amu
99+
Volume atom
28.90 cm3 / mol
8
20.80 cm3 / mol
15
Nomer atom jejer
Potensi Valence Electron
45.60 (-eV)
35
42.64 (-eV)
99+
Constant pola
458.10 pm
17
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
5.26 g / cm 3
99+
6.77 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
5.13 g / cm3
99+
6.50 g / cm3
39
Strength tensile
120.00 MPa
15
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
19.40 (Pa)
4
0.00 (Pa)
25
Meksa beluk ing 2000 K
ora Sumadhiya
13.20 (Pa)
7
situs kelenturan
nyukur pengaturan
7.90 GPA
99+
14.80 GPA
39
pengaturan akeh
8.30 GPA
99+
28.80 GPA
40
Young kang pengaturan
18.20 GPA
99+
37.30 GPA
99+
Poisson rasio
0.15
34
0.28
16
Properties Teknik liyane
ductile
ductile, malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
5.24
99+
6.77
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.90 nΩ · m
99+
0.70 nΩ · m
99+
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.01 10 6 / cm Ω
99+
elektron Affinity
50.00 kJ / mol
21
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.18 J / (kg K)
33
0.19 J / (kg K)
32
Graham Kapasitas kalor
27.66 J / mol · K
16
27.20 J / mol · K
18
doyo termal
13.90 W / m · K
99+
12.50 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
35.00 μm / (m · K)
8
6.70 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
143.50 kJ / mol
99+
296.80 kJ / mol
29
Enthalpy saka Fusion
9.21 kJ / mol
37
6.89 kJ / mol
99+
Enthalpy saka atomization
180.00 kJ / mol
99+
368.00 kJ / mol
24
Standard molar Entropy
77.80 J / mol.K
4
73.20 J / mol.K
10
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