Samarium mungsuh Protaktinium
Tabel périodik
Symbol
Sm
Pa
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
6
7
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
actinide
CAS Number
7440199
99+
7440133
99+
Jeneng papan Group
R_ 3M
I4 / mmm
Space Group Number
166.00
6
139.00
8
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 Protaktinium wis 29 isotop.
- Isotop saka Protaktinium-231 digunakake ing gegaman nuklir.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Ores Uranium, Mining, Ores logam
History
sing katutup
Lecoq de Boisbaudran
William Crookes
Discovery
ing taun 1879
ing taun 1900
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-7 %
19
ora Sumadhiya
Turah mbrawah Ing Sun
~0.0000001 %
26
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
37
ora Sumadhiya
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
29
0.00 %
99+
Turah mbrawah Ing Segara
0.00 %
40
0.00 %
99+
ulah
Ulah lan Wuku
Character length exceed error
- Efesus saiki dikenal saka logam Protaktinium sing winates kanggo riset waé mung.
Ulah Industrial
Industry Aerospace, Industry automobile, Industri Kimia, Industry Listrik, Industry Elektronik
NA
Ulah Medical
NA
NA
Ulah liyane
wesi, Ing Reactors Nuclear
NA
Properties biologi
keracunan
rada Toxic
Highly Toxic
Saiki ing badan Human
Ya
Ora
Sang
0.01 Sang / mg dm-3
22
0.00 Sang / mg dm-3
37
ing Bone
ora Sumadhiya
0.00 ppm
36
fisik Properties
leleh Point
1,072.00 ° C
99+
1,568.00 ° C
21
Boiling Point
1,900.00 ° C
99+
4,027.00 ° C
12
katon
State fisik
Solid
Solid
warna
perak Putih
Silver
luster
lustrous
metallic
atose
Brinell atose
441.00 MPa
27
ora Sumadhiya
Vickers atose
412.00 MPa
24
ora Sumadhiya
Kacepetan swara
2,130.00 m / s
99+
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
Sm
Pa
isotop
Isotop dikenal
30
9
27
12
keelektronegatifan
Pauling Elektronegativitas
1.17
40
1.50
27
Allred Rochow Elektronegativitas
1.07
32
1.14
28
Electropositivity
Pauling Electropositivity
2.83
14
2.50
27
tenogo ionisasi
Level Energy 1st
544.50 kJ / mol
99+
568.00 kJ / mol
99+
Level Energy 2
1,070.00 kJ / mol
99+
1,128.00 kJ / mol
99+
Level Energy 3rd
2,260.00 kJ / mol
99+
1,814.00 kJ / mol
99+
Level Energy 4
3,990.00 kJ / mol
37
2,991.00 kJ / mol
99+
padha karo elektrokimia
1.87 g / amp-day
34
1.72 g / amp-day
99+
Fungsi Work elektron
2.70 eV
99+
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif
ionisasi, Isotop radioaktif, Radioaktif
atom Properties
Panggil atom
62
99+
91
27
Konfigurasi elektron
[Xe] 4F 6 6s 2
[Rn] 5F 2 6D 1 7s 2
Struktur Crystal
Rhombohedral (RHO)
Tetragonal (TETR)
Crystal pola
RHO-Crystal-Structure-of-Samarium.jpg#100
TETR-Crystal-Structure-of-Protactinium.jpg#100
atom
Jumlah proton
62
99+
91
27
Jumlah Neutron
88
39
122
21
Jumlah Èlèktron
62
99+
91
27
Radius saka Atom
Radius atom
180.00 pm
14
163.00 pm
25
kovalen Radius
198.00 pm
13
200.00 pm
11
Van der Waals Radius
229.00 pm
20
243.00 pm
11
Bobot atom
150.36 Amu
99+
231.04 Amu
24
Volume atom
19.95 cm3 / mol
19
15.00 cm3 / mol
34
Nomer atom jejer
Potensi Valence Electron
44.80 (-eV)
37
92.00 (-eV)
11
Constant pola
362.10 pm
33
392.50 pm
23
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+
15.37 g / cm 3
20
Kapadhetan Nalika Liquid (ing mp)
7.16 g / cm3
32
ora Sumadhiya
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.94 (Pa)
9
ora Sumadhiya
situs kelenturan
nyukur pengaturan
19.50 GPA
34
ora Sumadhiya
pengaturan akeh
37.80 GPA
35
ora Sumadhiya
Young kang pengaturan
49.70 GPA
37
ora Sumadhiya
Poisson rasio
0.27
19
ora Sumadhiya
Properties Teknik liyane
NA
Unknown
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
7.52
99+
15.37
12
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.94 nΩ · m
99+
177.00 nΩ · m
21
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.05 10 6 / cm Ω
34
elektron Affinity
50.00 kJ / mol
21
ora Sumadhiya
termal Properties
Kalor tartamtu
0.20 J / (kg K)
31
0.12 J / (kg K)
40
Graham Kapasitas kalor
29.54 J / mol · K
7
ora Sumadhiya
doyo termal
13.30 W / m · K
99+
47.00 W / m · K
32
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
12.70 μm / (m · K)
30
9.90 μm / (m · K)
40
enthalpy
Enthalpy panguapan
166.40 kJ / mol
99+
ora Sumadhiya
Enthalpy saka Fusion
8.62 kJ / mol
40
12.34 kJ / mol
28
Enthalpy saka atomization
209.00 kJ / mol
99+
ora Sumadhiya
Standard molar Entropy
69.60 J / mol.K
15
198.10 J / mol.K
1
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