Europium mungsuh Holmium
Tabel périodik
Symbol
Eu
Ho
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
6
6
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
lanthanide
CAS Number
7440531
34
7440600
29
Jeneng papan Group
3M Im_
P63 / mmc
Space Group Number
229.00
1
194.00
5
facts
Facts Interesting
ora Cepak
- metal Holmium sanget alus lan malleable.
- metal Holmium uga dikenal kanggo resistivity sawijining karat.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Eugène-Anatole Demarçay
Marc Delafontaine
Discovery
ing taun 1896
ing taun 1878
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-8 %
27
5 * 10-8 %
27
Turah mbrawah Ing Sun
~0.00000005 %
27
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
99+
0.00 %
99+
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
36
0.00 %
38
Turah mbrawah Ing Segara
0.00 %
99+
0.00 %
99+
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.
- metal Holmium duwe kemampuan kanggo nresep neutron, supaya logam iki digunakake ing reaktor nuklir kanggo njaga reaksi berantai saka unsur ing kontrol.
- Wesi saka Holmium digunakake kanggo gawé Magnet.
Ulah Industrial
Industri Kimia
NA
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi, Nuclear Riset
Properties biologi
keracunan
non Toxic
Low Toxic
Saiki ing badan Human
Ya
Ora
fisik Properties
leleh Point
822.00 ° C
99+
1,461.00 ° C
30
Boiling Point
1,597.00 ° C
99+
2,600.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
lustrous
metallic
atose
Brinell atose
ora Sumadhiya
746.00 MPa
13
Vickers atose
167.00 MPa
34
481.00 MPa
23
Kacepetan swara
ora Sumadhiya
2,760.00 m / s
30
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
Ho
isotop
Isotop dikenal
31
8
34
5
keelektronegatifan
Pauling Elektronegativitas
1.20
39
1.23
37
Sanderson Elektronegativitas
1.01
22
ora Sumadhiya
Allred Rochow Elektronegativitas
ora Sumadhiya
1.10
30
Electropositivity
Pauling Electropositivity
ora Sumadhiya
2.77
17
tenogo ionisasi
Level Energy 1st
547.10 kJ / mol
99+
581.00 kJ / mol
99+
Level Energy 2
1,085.00 kJ / mol
99+
1,140.00 kJ / mol
99+
Level Energy 3rd
2,404.00 kJ / mol
99+
2,204.00 kJ / mol
99+
Level Energy 4
4,120.00 kJ / mol
33
4,100.00 kJ / mol
34
padha karo elektrokimia
1.89 g / amp-day
33
2.02 g / amp-day
29
Fungsi Work elektron
2.50 eV
99+
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
63
99+
67
99+
Konfigurasi elektron
[Xe] 4F 7 6s 2
[Xe] 4F 11 6s 2
Struktur Crystal
Body tengah kubik (Bcc)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
BCC-Crystal-Structure-.jpg#100
HCP-Crystal-Structure-of-Holmium.jpg#100
atom
Jumlah proton
63
99+
67
99+
Jumlah Neutron
89
38
98
34
Jumlah Èlèktron
63
99+
67
99+
Radius saka Atom
Radius atom
180.00 pm
14
176.00 pm
18
kovalen Radius
198.00 pm
13
192.00 pm
17
Van der Waals Radius
233.00 pm
18
216.00 pm
24
Bobot atom
151.96 Amu
99+
164.93 Amu
99+
Volume atom
28.90 cm3 / mol
8
18.70 cm3 / mol
24
Nomer atom jejer
Potensi Valence Electron
45.60 (-eV)
35
47.90 (-eV)
31
Constant pola
458.10 pm
17
357.73 pm
38
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
1.57
17
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
5.26 g / cm 3
99+
8.79 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
5.13 g / cm3
99+
8.34 g / cm3
26
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)
16
situs kelenturan
nyukur pengaturan
7.90 GPA
99+
26.30 GPA
28
pengaturan akeh
8.30 GPA
99+
40.20 GPA
32
Young kang pengaturan
18.20 GPA
99+
64.80 GPA
31
Poisson rasio
0.15
34
0.23
29
Properties Teknik liyane
ductile
ductile, malleable, Sectile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
5.24
99+
8.80
35
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.90 nΩ · m
99+
814.00 nΩ · m
4
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
0.16 J / (kg K)
35
Graham Kapasitas kalor
27.66 J / mol · K
16
27.15 J / mol · K
19
doyo termal
13.90 W / m · K
99+
16.20 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
35.00 μm / (m · K)
8
11.20 μm / (m · K)
35
enthalpy
Enthalpy panguapan
143.50 kJ / mol
99+
241.00 kJ / mol
38
Enthalpy saka Fusion
9.21 kJ / mol
37
11.76 kJ / mol
29
Enthalpy saka atomization
180.00 kJ / mol
99+
301.00 kJ / mol
36
Standard molar Entropy
77.80 J / mol.K
4
75.30 J / mol.K
8
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