Samarium mungsuh Neodymium
Tabel périodik
Symbol
Sm
Nd
Panggil Group
ora Sumadhiya
1
17
Panggil periode
6
6
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
lanthanide
CAS Number
7440199
99+
7440008
99+
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.
- Neodymium ora ketemu gratis ing alam, Empu iku ora logam native.
- metal Neodymium ditemokaké ing mineral Monazite lan bastnaesite.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining
History
sing katutup
Lecoq de Boisbaudran
Carl Auer von Welsbach
Discovery
ing taun 1879
ing taun 1885
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-7 %
19
1 * 10-6 %
16
Turah mbrawah Ing Sun
~0.0000001 %
26
~0.0000003 %
24
Turah mbrawah Ing meteorit
0.00 %
37
0.00 %
30
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
29
0.00 %
20
Turah mbrawah Ing Segara
0.00 %
40
0.00 %
30
ulah
Ulah lan Wuku
Character length exceed error
- alloy Neodymium-Iron-boron digunakake kanggo nggawe wesi sembrani permanen.
- Kang digunakake ing Mikrofon, Mp3 pamuter, speaker, telpon seluler, etc.
Ulah Industrial
Industry Aerospace, Industry automobile, Industri Kimia, Industry Listrik, Industry Elektronik
Industry Aerospace, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi, Ing Reactors Nuclear
wesi
Properties biologi
keracunan
rada Toxic
non 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+
1,010.00 ° C
99+
Boiling Point
1,900.00 ° C
99+
3,127.00 ° C
28
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
lustrous
metallic
atose
Brinell atose
441.00 MPa
27
265.00 MPa
35
Vickers atose
412.00 MPa
24
345.00 MPa
27
Kacepetan swara
2,130.00 m / s
99+
2,330.00 m / s
38
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
Nd
isotop
Isotop dikenal
30
9
30
9
keelektronegatifan
Pauling Elektronegativitas
1.17
40
1.14
99+
Allred Rochow Elektronegativitas
1.07
32
1.07
32
Electropositivity
Pauling Electropositivity
2.83
14
2.86
13
tenogo ionisasi
Level Energy 1st
544.50 kJ / mol
99+
533.10 kJ / mol
99+
Level Energy 2
1,070.00 kJ / mol
99+
1,040.00 kJ / mol
99+
Level Energy 3rd
2,260.00 kJ / mol
99+
2,130.00 kJ / mol
99+
Level Energy 4
3,990.00 kJ / mol
37
3,900.00 kJ / mol
99+
padha karo elektrokimia
1.87 g / amp-day
34
1.79 g / amp-day
37
Fungsi Work elektron
2.70 eV
99+
3.20 eV
34
Properties Kimia liyane
ionisasi, Isotop radioaktif
Kimia Stabilitas, Corrosion, kebakar, ionisasi
atom Properties
Panggil atom
62
99+
60
99+
Konfigurasi elektron
[Xe] 4F 6 6s 2
[Xe] 4F 4 6s 2
Struktur Crystal
Rhombohedral (RHO)
Double Hexagonal Tutup dikempalken (DHCP)
Crystal pola
RHO-Crystal-Structure-of-Samarium.jpg#100
DHCP-Crystal-Structure-of-Neodymium.jpg#100
atom
Jumlah proton
62
99+
60
99+
Jumlah Neutron
88
39
84
40
Jumlah Èlèktron
62
99+
60
99+
Radius saka Atom
Radius atom
180.00 pm
14
181.00 pm
13
kovalen Radius
198.00 pm
13
201.00 pm
10
Van der Waals Radius
229.00 pm
20
229.00 pm
20
Bobot atom
150.36 Amu
99+
144.24 Amu
99+
Volume atom
19.95 cm3 / mol
19
20.60 cm3 / mol
18
Nomer atom jejer
Potensi Valence Electron
44.80 (-eV)
37
43.40 (-eV)
99+
Constant pola
362.10 pm
33
365.80 pm
30
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
1.61
4
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
7.52 g / cm 3
99+
7.01 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
7.16 g / cm3
32
6.89 g / cm3
36
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)
21
Meksa beluk ing 2000 K
ora Sumadhiya
101.00 (Pa)
2
situs kelenturan
nyukur pengaturan
19.50 GPA
34
16.30 GPA
38
pengaturan akeh
37.80 GPA
35
31.80 GPA
37
Young kang pengaturan
49.70 GPA
37
41.40 GPA
40
Poisson rasio
0.27
19
0.28
16
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
7.52
99+
7.00
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
NA
resistivity
0.94 nΩ · m
99+
643.00 nΩ · m
6
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.02 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
0.19 J / (kg K)
32
Graham Kapasitas kalor
29.54 J / mol · K
7
27.45 J / mol · K
17
doyo termal
13.30 W / m · K
99+
16.50 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
12.70 μm / (m · K)
30
9.60 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
166.40 kJ / mol
99+
273.00 kJ / mol
34
Enthalpy saka Fusion
8.62 kJ / mol
40
7.14 kJ / mol
99+
Enthalpy saka atomization
209.00 kJ / mol
99+
322.00 kJ / mol
32
Standard molar Entropy
69.60 J / mol.K
15
71.50 J / mol.K
13
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