mbandhingaké lanthanum lan Europium
Tabel périodik
Symbol
La
Eu
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
6
6
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
lanthanide
CAS Number
7439910
99+
7440531
34
Jeneng papan Group
P63 / mmc
3M Im_
Space Group Number
194.00
5
229.00
1
facts
Facts Interesting
- Lanthanum logam punika Highly malleable, ductile lan sectile.
- Yen kapapar logam Lanthanum online oxidizes kanthi cepet.
ora Cepak
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Carl Gustaf Mosander
Eugène-Anatole Demarçay
Discovery
Wonten ing taun 1838
ing taun 1896
turah mbrawah
Turah mbrawah Ing Universe
2 * 10-7 %
22
5 * 10-8 %
27
Turah mbrawah Ing Sun
~0.0000002 %
25
~0.00000005 %
27
Turah mbrawah Ing meteorit
0.00 %
32
0.00 %
99+
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
19
0.00 %
36
Turah mbrawah Ing Segara
0.00 %
29
0.00 %
99+
ulah
Ulah lan Wuku
Character length exceed error
- logam Europium utama Efesus ing printing saka dhuwit kertas Euro. cathetan iki cemlorot abang ing lampu UV.
- Kang digunakake ing bolam lampu kurang energi.
Ulah Industrial
Industry Listrik, Industry Elektronik
Industri Kimia
Ulah Medical
NA
NA
Ulah liyane
wesi, Manufacturing mirror
wesi
Properties biologi
keracunan
Low Toxic
non Toxic
Saiki ing badan Human
Ya
Ya
ing Bone
0.08 ppm
24
ora Sumadhiya
fisik Properties
leleh Point
920.00 ° C
99+
822.00 ° C
99+
Boiling Point
3,469.00 ° C
18
1,597.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
NA
lustrous
atose
Mohs atose
2.50
14
ora Sumadhiya
Brinell atose
350.00 MPa
30
ora Sumadhiya
Vickers atose
360.00 MPa
26
167.00 MPa
34
Kacepetan swara
2,475.00 m / s
37
ora Sumadhiya
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
La
Eu
isotop
Isotop dikenal
31
8
31
8
keelektronegatifan
Pauling Elektronegativitas
1.10
99+
1.20
39
Sanderson Elektronegativitas
ora Sumadhiya
1.01
22
Allred Rochow Elektronegativitas
1.08
31
ora Sumadhiya
Electropositivity
Pauling Electropositivity
2.90
10
ora Sumadhiya
tenogo ionisasi
Level Energy 1st
538.10 kJ / mol
99+
547.10 kJ / mol
99+
Level Energy 2
1,067.00 kJ / mol
99+
1,085.00 kJ / mol
99+
Level Energy 3rd
1,850.30 kJ / mol
99+
2,404.00 kJ / mol
99+
Level Energy 4
4,819.00 kJ / mol
22
4,120.00 kJ / mol
33
Level Energy 5th
5,940.00 kJ / mol
25
ora Sumadhiya
padha karo elektrokimia
1.73 g / amp-day
99+
1.89 g / amp-day
33
Fungsi Work elektron
3.50 eV
31
2.50 eV
99+
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
57
99+
63
99+
Konfigurasi elektron
[Xe] 5d 2 6s 2
[Xe] 4F 7 6s 2
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Body tengah kubik (Bcc)
Crystal pola
DHCP-Crystal-Structure-of-Lanthanum.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
57
99+
63
99+
Jumlah Neutron
82
99+
89
38
Jumlah Èlèktron
57
99+
63
99+
Radius saka Atom
Radius atom
187.00 pm
8
180.00 pm
14
kovalen Radius
207.00 pm
6
198.00 pm
13
Van der Waals Radius
240.00 pm
13
233.00 pm
18
Bobot atom
138.91 Amu
99+
151.96 Amu
99+
Volume atom
20.73 cm3 / mol
16
28.90 cm3 / mol
8
Nomer atom jejer
Potensi Valence Electron
40.71 (-eV)
99+
45.60 (-eV)
35
Constant pola
377.20 pm
28
458.10 pm
17
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
1.62
2
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
6.16 g / cm 3
99+
5.26 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
5.94 g / cm3
99+
5.13 g / cm3
99+
Strength tensile
ora Sumadhiya
120.00 MPa
15
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
ora Sumadhiya
19.40 (Pa)
4
Meksa beluk ing 2000 K
0.98 (Pa)
15
ora Sumadhiya
situs kelenturan
nyukur pengaturan
14.30 GPA
40
7.90 GPA
99+
pengaturan akeh
27.90 GPA
99+
8.30 GPA
99+
Young kang pengaturan
36.60 GPA
99+
18.20 GPA
99+
Poisson rasio
0.28
17
0.15
34
Properties Teknik liyane
ductile
ductile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
6.17
99+
5.24
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
615.00 nΩ · m
7
0.90 nΩ · m
99+
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.01 10 6 / cm Ω
99+
elektron Affinity
48.00 kJ / mol
23
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.19 J / (kg K)
32
0.18 J / (kg K)
33
Graham Kapasitas kalor
27.11 J / mol · K
21
27.66 J / mol · K
16
doyo termal
13.40 W / m · K
99+
13.90 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
12.10 μm / (m · K)
32
35.00 μm / (m · K)
8
enthalpy
Enthalpy panguapan
399.60 kJ / mol
17
143.50 kJ / mol
99+
Enthalpy saka Fusion
6.20 kJ / mol
99+
9.21 kJ / mol
37
Enthalpy saka atomization
431.00 kJ / mol
16
180.00 kJ / mol
99+
Standard molar Entropy
56.90 J / mol.K
23
77.80 J / mol.K
4
|
||
|
||
|
