mbandhingaké Europium lan cerium
Tabel périodik
Symbol
Eu
Ce
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
6
6
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
lanthanide
CAS Number
7440531
34
7440451
99+
Jeneng papan Group
3M Im_
P63 / mmc
Space Group Number
229.00
1
194.00
5
facts
Facts Interesting
ora Cepak
Character length exceed error
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Eugène-Anatole Demarçay
Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger
Discovery
ing taun 1896
ing 1803
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-8 %
27
1 * 10-6 %
16
Turah mbrawah Ing Sun
~0.00000005 %
27
~0.0000004 %
23
Turah mbrawah Ing meteorit
0.00 %
99+
0.00 %
27
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
36
0.01 %
18
Turah mbrawah Ing Segara
0.00 %
99+
0.00 %
33
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.
- Kang digunakake kanggo kalebu flints kanggo korek rokok.
- Sawijining senyawa Cerium (Gerah) oksida digunakake minangka katalis; sijine nang tembok saka open minangka ngalangi saka buildup saka ampas masak.
Ulah Industrial
Industri Kimia
Industri Kimia
Ulah Medical
NA
Medical Research
Ulah liyane
wesi
wesi
Properties biologi
keracunan
non Toxic
arep Toxic
Saiki ing badan Human
Ya
Ya
Sang
ora Sumadhiya
0.00 Sang / mg dm-3
30
ing Bone
ora Sumadhiya
2.70 ppm
14
fisik Properties
leleh Point
822.00 ° C
99+
795.00 ° C
99+
Boiling Point
1,597.00 ° C
99+
3,257.00 ° C
23
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
lustrous
lustrous
atose
Mohs atose
ora Sumadhiya
2.50
14
Brinell atose
ora Sumadhiya
186.00 MPa
99+
Vickers atose
167.00 MPa
34
210.00 MPa
32
Kacepetan swara
ora Sumadhiya
2,100.00 m / s
99+
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
Ce
isotop
Isotop dikenal
31
8
30
9
keelektronegatifan
Pauling Elektronegativitas
1.20
39
1.12
99+
Sanderson Elektronegativitas
1.01
22
ora Sumadhiya
Allred Rochow Elektronegativitas
ora Sumadhiya
1.08
31
Electropositivity
Pauling Electropositivity
ora Sumadhiya
2.88
11
tenogo ionisasi
Level Energy 1st
547.10 kJ / mol
99+
534.40 kJ / mol
99+
Level Energy 2
1,085.00 kJ / mol
99+
1,050.00 kJ / mol
99+
Level Energy 3rd
2,404.00 kJ / mol
99+
1,949.00 kJ / mol
99+
Level Energy 4
4,120.00 kJ / mol
33
3,547.00 kJ / mol
99+
Level Energy 5th
ora Sumadhiya
6,325.00 kJ / mol
22
Level Energy 6th
ora Sumadhiya
7,490.00 kJ / mol
21
padha karo elektrokimia
1.89 g / amp-day
33
1.74 g / amp-day
99+
Fungsi Work elektron
2.50 eV
99+
2.84 eV
39
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
63
99+
58
99+
Konfigurasi elektron
[Xe] 4F 7 6s 2
[Xe] 4F 1 5d 1 6s 2
Struktur Crystal
Body tengah kubik (Bcc)
Double Hexagonal Tutup dikempalken (DHCP)
Crystal pola
BCC-Crystal-Structure-.jpg#100
DHCP-Crystal-Structure-of-Cerium.jpg#100
atom
Jumlah proton
63
99+
58
99+
Jumlah Neutron
89
38
82
99+
Jumlah Èlèktron
63
99+
58
99+
Radius saka Atom
Radius atom
180.00 pm
14
181.80 pm
12
kovalen Radius
198.00 pm
13
204.00 pm
8
Van der Waals Radius
233.00 pm
18
235.00 pm
17
Bobot atom
151.96 Amu
99+
140.12 Amu
99+
Volume atom
28.90 cm3 / mol
8
20.67 cm3 / mol
17
Nomer atom jejer
Potensi Valence Electron
45.60 (-eV)
35
41.78 (-eV)
99+
Constant pola
458.10 pm
17
362.00 pm
34
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
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+
6.55 g / cm3
38
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)
34
Meksa beluk ing 2000 K
ora Sumadhiya
1.04 (Pa)
13
situs kelenturan
nyukur pengaturan
7.90 GPA
99+
13.50 GPA
99+
pengaturan akeh
8.30 GPA
99+
21.50 GPA
99+
Young kang pengaturan
18.20 GPA
99+
33.60 GPA
99+
Poisson rasio
0.15
34
0.24
27
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+
828.00 nΩ · m
3
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
26.94 J / mol · K
23
doyo termal
13.90 W / m · K
99+
11.30 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
35.00 μm / (m · K)
8
6.30 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
143.50 kJ / mol
99+
414.00 kJ / mol
16
Enthalpy saka Fusion
9.21 kJ / mol
37
5.46 kJ / mol
99+
Enthalpy saka atomization
180.00 kJ / mol
99+
381.00 kJ / mol
23
Standard molar Entropy
77.80 J / mol.K
4
72.00 J / mol.K
12
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