strontium mungsuh Samarium
Tabel périodik
Symbol
Sr
Sm
Panggil Group
2
16
ora Sumadhiya
Panggil periode
5
6
Block
s pemblokiran
pemblokiran f
Family unsur
alkalin bumi
lanthanide
CAS Number
7440246
99+
7440199
99+
Jeneng papan Group
Fm_ 3M
R_ 3M
Space Group Number
225.00
2
166.00
6
facts
Facts Interesting
- unsur strontium alus saka Calcium.
- Perak Strontium dadi kuning, yen kapapar online.
- Samarium logam mbantu menehi pancingan metabolisme awak.
- Samarium logam ana 1st diamati dening Jean Charles Galissard de Marignac ing Dydimia ing 1853.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
William Cruickshank
Lecoq de Boisbaudran
Discovery
ing 1787
ing taun 1879
turah mbrawah
Turah mbrawah Ing Universe
4 * 10-6 %
14
5 * 10-7 %
19
Turah mbrawah Ing Sun
~0.000005 %
15
~0.0000001 %
26
Turah mbrawah Ing meteorit
0.00 %
15
0.00 %
37
Turah mbrawah Ing bumi lemah ndhuwur
0.04 %
10
0.00 %
29
Turah mbrawah Ing Segara
0.00 %
4
0.00 %
40
Turah mbrawah Ing Manungsa
0.00 %
7
ora Sumadhiya
ulah
Ulah lan Wuku
Character length exceed error
Character length exceed error
Ulah Industrial
Industry amunisi, Industri Kimia
Industry Aerospace, Industry automobile, Industri Kimia, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi, Ing Reactors Nuclear
Properties biologi
keracunan
non Toxic
rada Toxic
Saiki ing badan Human
Ya
Ya
Sang
0.03 Sang / mg dm-3
19
0.01 Sang / mg dm-3
22
ing Bone
140.00 ppm
7
ora Sumadhiya
fisik Properties
leleh Point
769.00 ° C
99+
1,072.00 ° C
99+
Boiling Point
1,384.00 ° C
99+
1,900.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
metallic
lustrous
atose
Mohs atose
1.50
18
ora Sumadhiya
Brinell atose
ora Sumadhiya
441.00 MPa
27
Vickers atose
ora Sumadhiya
412.00 MPa
24
Kacepetan swara
ora Sumadhiya
2,130.00 m / s
99+
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
Sr
Sm
isotop
Isotop dikenal
27
12
30
9
keelektronegatifan
Pauling Elektronegativitas
0.95
99+
1.17
40
Sanderson Elektronegativitas
0.72
27
ora Sumadhiya
Allred Rochow Elektronegativitas
0.99
37
1.07
32
Mulliken-Jaffe Elektronegativitas
1.00
18
ora Sumadhiya
Allen Elektronegativitas
0.96
40
ora Sumadhiya
Electropositivity
Pauling Electropositivity
3.05
7
2.83
14
tenogo ionisasi
Level Energy 1st
549.50 kJ / mol
99+
544.50 kJ / mol
99+
Level Energy 2
1,064.20 kJ / mol
99+
1,070.00 kJ / mol
99+
Level Energy 3rd
4,138.00 kJ / mol
10
2,260.00 kJ / mol
99+
Level Energy 4
5,500.00 kJ / mol
13
3,990.00 kJ / mol
37
Level Energy 5th
6,910.00 kJ / mol
18
ora Sumadhiya
Level Energy 6th
8,760.00 kJ / mol
18
ora Sumadhiya
tingkat Energy 7
10,230.00 kJ / mol
19
ora Sumadhiya
Level Energy 8
11,800.00 kJ / mol
19
ora Sumadhiya
Level Energy 9
15,600.00 kJ / mol
17
ora Sumadhiya
Level Energy 10th
17,100.00 kJ / mol
19
ora Sumadhiya
Level Energy 11
31,270.00 kJ / mol
6
ora Sumadhiya
padha karo elektrokimia
1.64 g / amp-day
99+
1.87 g / amp-day
34
Fungsi Work elektron
2.59 eV
99+
2.70 eV
99+
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
ionisasi, Isotop radioaktif
atom Properties
Panggil atom
38
99+
62
99+
Konfigurasi elektron
[Kr] 5S 2
[Xe] 4F 6 6s 2
Struktur Crystal
Face tengah kubik (FCC)
Rhombohedral (RHO)
Crystal pola
FCC-Crystal-Structure-of-Strontium.jpg#100
RHO-Crystal-Structure-of-Samarium.jpg#100
atom
Jumlah proton
38
99+
62
99+
Jumlah Neutron
50
99+
88
39
Jumlah Èlèktron
38
99+
62
99+
Radius saka Atom
Radius atom
215.00 pm
5
180.00 pm
14
kovalen Radius
195.00 pm
15
198.00 pm
13
Van der Waals Radius
249.00 pm
7
229.00 pm
20
Bobot atom
87.62 Amu
99+
150.36 Amu
99+
Volume atom
33.70 cm3 / mol
6
19.95 cm3 / mol
19
Nomer atom jejer
Potensi Valence Electron
25.70 (-eV)
99+
44.80 (-eV)
37
Constant pola
608.49 pm
6
362.10 pm
33
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
2.64 g / cm 3
99+
7.52 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
2.38 g / cm3
99+
7.16 g / cm3
32
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
121.00 (Pa)
1
0.94 (Pa)
9
situs kelenturan
nyukur pengaturan
6.03 GPA
99+
19.50 GPA
34
pengaturan akeh
ora Sumadhiya
37.80 GPA
35
Young kang pengaturan
15.70 GPA
99+
49.70 GPA
37
Poisson rasio
0.28
17
0.27
19
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
2.64
99+
7.52
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
NA
Arman
resistivity
132.00 nΩ · m
24
0.94 nΩ · m
99+
konduktivitas listrik
0.08 10 6 / cm Ω
26
0.01 10 6 / cm Ω
99+
elektron Affinity
5.03 kJ / mol
38
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.30 J / (kg K)
18
0.20 J / (kg K)
31
Graham Kapasitas kalor
26.40 J / mol · K
28
29.54 J / mol · K
7
doyo termal
35.40 W / m · K
37
13.30 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
22.50 μm / (m · K)
18
12.70 μm / (m · K)
30
enthalpy
Enthalpy panguapan
150.00 kJ / mol
99+
166.40 kJ / mol
99+
Enthalpy saka Fusion
9.16 kJ / mol
38
8.62 kJ / mol
40
Enthalpy saka atomization
163.20 kJ / mol
99+
209.00 kJ / mol
99+
Standard molar Entropy
55.00 J / mol.K
26
69.60 J / mol.K
15
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