Samarium mungsuh Holmium
Tabel périodik
Symbol
Sm
Ho
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
6
6
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
lanthanide
CAS Number
7440199
99+
7440600
29
Jeneng papan Group
R_ 3M
P63 / mmc
Space Group Number
166.00
6
194.00
5
facts
Facts Interesting
- Samarium logam mbantu menehi pancingan metabolisme awak.
- Samarium logam ana 1st diamati dening Jean Charles Galissard de Marignac ing Dydimia ing 1853.
- 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
Lecoq de Boisbaudran
Marc Delafontaine
Discovery
ing taun 1879
ing taun 1878
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-7 %
19
5 * 10-8 %
27
Turah mbrawah Ing Sun
~0.0000001 %
26
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
37
0.00 %
99+
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
29
0.00 %
38
Turah mbrawah Ing Segara
0.00 %
40
0.00 %
99+
ulah
Ulah lan Wuku
Character length exceed error
- 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
Industry Aerospace, Industry automobile, Industri Kimia, Industry Listrik, Industry Elektronik
NA
Ulah Medical
NA
NA
Ulah liyane
wesi, Ing Reactors Nuclear
wesi, Nuclear Riset
Properties biologi
keracunan
rada Toxic
Low Toxic
Saiki ing badan Human
Ya
Ora
Sang
0.01 Sang / mg dm-3
22
ora Sumadhiya
fisik Properties
leleh Point
1,072.00 ° C
99+
1,461.00 ° C
30
Boiling Point
1,900.00 ° C
99+
2,600.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
lustrous
metallic
atose
Brinell atose
441.00 MPa
27
746.00 MPa
13
Vickers atose
412.00 MPa
24
481.00 MPa
23
Kacepetan swara
2,130.00 m / s
99+
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
Sm
Ho
isotop
Isotop dikenal
30
9
34
5
keelektronegatifan
Pauling Elektronegativitas
1.17
40
1.23
37
Allred Rochow Elektronegativitas
1.07
32
1.10
30
Electropositivity
Pauling Electropositivity
2.83
14
2.77
17
tenogo ionisasi
Level Energy 1st
544.50 kJ / mol
99+
581.00 kJ / mol
99+
Level Energy 2
1,070.00 kJ / mol
99+
1,140.00 kJ / mol
99+
Level Energy 3rd
2,260.00 kJ / mol
99+
2,204.00 kJ / mol
99+
Level Energy 4
3,990.00 kJ / mol
37
4,100.00 kJ / mol
34
padha karo elektrokimia
1.87 g / amp-day
34
2.02 g / amp-day
29
Fungsi Work elektron
2.70 eV
99+
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
62
99+
67
99+
Konfigurasi elektron
[Xe] 4F 6 6s 2
[Xe] 4F 11 6s 2
Struktur Crystal
Rhombohedral (RHO)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
RHO-Crystal-Structure-of-Samarium.jpg#100
HCP-Crystal-Structure-of-Holmium.jpg#100
atom
Jumlah proton
62
99+
67
99+
Jumlah Neutron
88
39
98
34
Jumlah Èlèktron
62
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
229.00 pm
20
216.00 pm
24
Bobot atom
150.36 Amu
99+
164.93 Amu
99+
Volume atom
19.95 cm3 / mol
19
18.70 cm3 / mol
24
Nomer atom jejer
Potensi Valence Electron
44.80 (-eV)
37
47.90 (-eV)
31
Constant pola
362.10 pm
33
357.73 pm
38
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
1.57
17
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
7.52 g / cm 3
99+
8.79 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
7.16 g / cm3
32
8.34 g / cm3
26
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.94 (Pa)
9
0.00 (Pa)
16
situs kelenturan
nyukur pengaturan
19.50 GPA
34
26.30 GPA
28
pengaturan akeh
37.80 GPA
35
40.20 GPA
32
Young kang pengaturan
49.70 GPA
37
64.80 GPA
31
Poisson rasio
0.27
19
0.23
29
Properties Teknik liyane
NA
ductile, malleable, Sectile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
7.52
99+
8.80
35
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.94 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
0.20 J / (kg K)
31
0.16 J / (kg K)
35
Graham Kapasitas kalor
29.54 J / mol · K
7
27.15 J / mol · K
19
doyo termal
13.30 W / m · K
99+
16.20 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
12.70 μm / (m · K)
30
11.20 μm / (m · K)
35
enthalpy
Enthalpy panguapan
166.40 kJ / mol
99+
241.00 kJ / mol
38
Enthalpy saka Fusion
8.62 kJ / mol
40
11.76 kJ / mol
29
Enthalpy saka atomization
209.00 kJ / mol
99+
301.00 kJ / mol
36
Standard molar Entropy
69.60 J / mol.K
15
75.30 J / mol.K
8
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