Samarium mungsuh tantalum
Tabel périodik
Symbol
Sm
Ta
Panggil Group
ora Sumadhiya
5
13
Panggil periode
6
6
Block
pemblokiran f
d block
Family unsur
lanthanide
transisi Metal
CAS Number
7440199
99+
7440257
99+
Jeneng papan Group
R_ 3M
3M Im_
Space Group Number
166.00
6
229.00
1
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.
- Tantalum logam dikenal minangka resistance karat.
- Tantalum logam bisa gampang fabricated lan Punika dirijen apik saka panas lan listrik.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Lecoq de Boisbaudran
Anders Gustaf Ekeberg
Discovery
ing taun 1879
ing taun 1802
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-7 %
19
8 * 10-9 %
31
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 %
37
Turah mbrawah Ing Segara
0.00 %
40
0.00 %
31
ulah
Ulah lan Wuku
Character length exceed error
Character length exceed error
Ulah Industrial
Industry Aerospace, Industry automobile, Industri Kimia, Industry Listrik, Industry Elektronik
Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi, Ing Reactors Nuclear
wesi
Properties biologi
keracunan
rada Toxic
Low Toxic
Saiki ing badan Human
Ya
Ya
Sang
0.01 Sang / mg dm-3
22
ora Sumadhiya
ing Bone
ora Sumadhiya
0.03 ppm
28
fisik Properties
leleh Point
1,072.00 ° C
99+
2,996.00 ° C
4
Boiling Point
1,900.00 ° C
99+
5,425.00 ° C
4
katon
State fisik
Solid
Solid
warna
perak Putih
Gray Blue
luster
lustrous
metallic
atose
Mohs atose
ora Sumadhiya
6.50
5
Brinell atose
441.00 MPa
27
440.00 MPa
28
Vickers atose
412.00 MPa
24
870.00 MPa
12
Kacepetan swara
2,130.00 m / s
99+
3,400.00 m / s
22
Properties Optical
reflectivity
ora Sumadhiya
78.00 %
6
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
Ta
isotop
Isotop dikenal
30
9
31
8
keelektronegatifan
Pauling Elektronegativitas
1.17
40
1.50
27
Allred Rochow Elektronegativitas
1.07
32
1.33
22
Allen Elektronegativitas
ora Sumadhiya
1.34
33
Electropositivity
Pauling Electropositivity
2.83
14
2.50
27
tenogo ionisasi
Level Energy 1st
544.50 kJ / mol
99+
761.00 kJ / mol
18
Level Energy 2
1,070.00 kJ / mol
99+
1,500.00 kJ / mol
40
Level Energy 3rd
2,260.00 kJ / mol
99+
ora Sumadhiya
Level Energy 4
3,990.00 kJ / mol
37
ora Sumadhiya
padha karo elektrokimia
1.87 g / amp-day
34
1.35 g / amp-day
99+
Fungsi Work elektron
2.70 eV
99+
4.25 eV
21
Properties Kimia liyane
ionisasi, Isotop radioaktif
anti Corrosion, ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
62
99+
73
99+
Konfigurasi elektron
[Xe] 4F 6 6s 2
[Xe] 4F 14 5d 3 6s 2
Struktur Crystal
Rhombohedral (RHO)
Body tengah kubik (Bcc)
Crystal pola
RHO-Crystal-Structure-of-Samarium.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
62
99+
73
99+
Jumlah Neutron
88
39
108
28
Jumlah Èlèktron
62
99+
73
99+
Radius saka Atom
Radius atom
180.00 pm
14
146.00 pm
35
kovalen Radius
198.00 pm
13
170.00 pm
25
Van der Waals Radius
229.00 pm
20
200.00 pm
28
Bobot atom
150.36 Amu
99+
180.95 Amu
38
Volume atom
19.95 cm3 / mol
19
10.90 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
44.80 (-eV)
37
110.00 (-eV)
7
Constant pola
362.10 pm
33
330.13 pm
99+
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
7.52 g / cm 3
99+
16.69 g / cm 3
18
Kapadhetan Nalika Liquid (ing mp)
7.16 g / cm3
32
15.00 g / cm3
9
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.94 (Pa)
9
ora Sumadhiya
Meksa beluk ing 2000 K
ora Sumadhiya
0.00 (Pa)
31
situs kelenturan
nyukur pengaturan
19.50 GPA
34
69.00 GPA
13
pengaturan akeh
37.80 GPA
35
200.00 GPA
8
Young kang pengaturan
49.70 GPA
37
186.00 GPA
13
Poisson rasio
0.27
19
0.34
10
Properties Teknik liyane
NA
ductile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
7.52
99+
16.65
11
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.94 nΩ · m
99+
131.00 nΩ · m
25
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.08 10 6 / cm Ω
27
elektron Affinity
50.00 kJ / mol
21
31.00 kJ / mol
29
termal Properties
Kalor tartamtu
0.20 J / (kg K)
31
0.14 J / (kg K)
37
Graham Kapasitas kalor
29.54 J / mol · K
7
25.36 J / mol · K
99+
doyo termal
13.30 W / m · K
99+
57.50 W / m · K
27
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
12.70 μm / (m · K)
30
6.30 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
166.40 kJ / mol
99+
753.10 kJ / mol
2
Enthalpy saka Fusion
8.62 kJ / mol
40
31.40 kJ / mol
3
Enthalpy saka atomization
209.00 kJ / mol
99+
782.00 kJ / mol
3
Standard molar Entropy
69.60 J / mol.K
15
41.50 J / mol.K
37
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