lanthanum mungsuh strontium
Tabel périodik
Symbol
La
Sr
Panggil Group
ora Sumadhiya
2
16
Panggil periode
6
5
Block
pemblokiran f
s pemblokiran
Family unsur
lanthanide
alkalin bumi
CAS Number
7439910
99+
7440246
99+
Jeneng papan Group
P63 / mmc
Fm_ 3M
Space Group Number
194.00
5
225.00
2
facts
Facts Interesting
- Lanthanum logam punika Highly malleable, ductile lan sectile.
- Yen kapapar logam Lanthanum online oxidizes kanthi cepet.
- unsur strontium alus saka Calcium.
- Perak Strontium dadi kuning, yen kapapar online.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Carl Gustaf Mosander
William Cruickshank
Discovery
Wonten ing taun 1838
ing 1787
turah mbrawah
Turah mbrawah Ing Universe
2 * 10-7 %
22
4 * 10-6 %
14
Turah mbrawah Ing Sun
~0.0000002 %
25
~0.000005 %
15
Turah mbrawah Ing meteorit
0.00 %
32
0.00 %
15
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
19
0.04 %
10
Turah mbrawah Ing Segara
0.00 %
29
0.00 %
4
Turah mbrawah Ing Manungsa
ora Sumadhiya
0.00 %
7
ulah
Ulah lan Wuku
Character length exceed error
Character length exceed error
Ulah Industrial
Industry Listrik, Industry Elektronik
Industry amunisi, Industri Kimia
Ulah Medical
NA
NA
Ulah liyane
wesi, Manufacturing mirror
wesi
Properties biologi
keracunan
Low Toxic
non Toxic
Saiki ing badan Human
Ya
Ya
Sang
ora Sumadhiya
0.03 Sang / mg dm-3
19
ing Bone
0.08 ppm
24
140.00 ppm
7
fisik Properties
leleh Point
920.00 ° C
99+
769.00 ° C
99+
Boiling Point
3,469.00 ° C
18
1,384.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
NA
metallic
atose
Mohs atose
2.50
14
1.50
18
Brinell atose
350.00 MPa
30
ora Sumadhiya
Vickers atose
360.00 MPa
26
ora Sumadhiya
Kacepetan swara
2,475.00 m / s
37
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
La
Sr
isotop
Isotop dikenal
31
8
27
12
keelektronegatifan
Pauling Elektronegativitas
1.10
99+
0.95
99+
Sanderson Elektronegativitas
ora Sumadhiya
0.72
27
Allred Rochow Elektronegativitas
1.08
31
0.99
37
Mulliken-Jaffe Elektronegativitas
ora Sumadhiya
1.00
18
Allen Elektronegativitas
ora Sumadhiya
0.96
40
Electropositivity
Pauling Electropositivity
2.90
10
3.05
7
tenogo ionisasi
Level Energy 1st
538.10 kJ / mol
99+
549.50 kJ / mol
99+
Level Energy 2
1,067.00 kJ / mol
99+
1,064.20 kJ / mol
99+
Level Energy 3rd
1,850.30 kJ / mol
99+
4,138.00 kJ / mol
10
Level Energy 4
4,819.00 kJ / mol
22
5,500.00 kJ / mol
13
Level Energy 5th
5,940.00 kJ / mol
25
6,910.00 kJ / mol
18
Level Energy 6th
ora Sumadhiya
8,760.00 kJ / mol
18
tingkat Energy 7
ora Sumadhiya
10,230.00 kJ / mol
19
Level Energy 8
ora Sumadhiya
11,800.00 kJ / mol
19
Level Energy 9
ora Sumadhiya
15,600.00 kJ / mol
17
Level Energy 10th
ora Sumadhiya
17,100.00 kJ / mol
19
Level Energy 11
ora Sumadhiya
31,270.00 kJ / mol
6
padha karo elektrokimia
1.73 g / amp-day
99+
1.64 g / amp-day
99+
Fungsi Work elektron
3.50 eV
31
2.59 eV
99+
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
57
99+
38
99+
Konfigurasi elektron
[Xe] 5d 2 6s 2
[Kr] 5S 2
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Face tengah kubik (FCC)
Crystal pola
DHCP-Crystal-Structure-of-Lanthanum.jpg#100
FCC-Crystal-Structure-of-Strontium.jpg#100
atom
Jumlah proton
57
99+
38
99+
Jumlah Neutron
82
99+
50
99+
Jumlah Èlèktron
57
99+
38
99+
Radius saka Atom
Radius atom
187.00 pm
8
215.00 pm
5
kovalen Radius
207.00 pm
6
195.00 pm
15
Van der Waals Radius
240.00 pm
13
249.00 pm
7
Bobot atom
138.91 Amu
99+
87.62 Amu
99+
Volume atom
20.73 cm3 / mol
16
33.70 cm3 / mol
6
Nomer atom jejer
Potensi Valence Electron
40.71 (-eV)
99+
25.70 (-eV)
99+
Constant pola
377.20 pm
28
608.49 pm
6
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
1.62
2
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
6.16 g / cm 3
99+
2.64 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
5.94 g / cm3
99+
2.38 g / cm3
99+
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
ora Sumadhiya
121.00 (Pa)
1
Meksa beluk ing 2000 K
0.98 (Pa)
15
ora Sumadhiya
situs kelenturan
nyukur pengaturan
14.30 GPA
40
6.03 GPA
99+
pengaturan akeh
27.90 GPA
99+
ora Sumadhiya
Young kang pengaturan
36.60 GPA
99+
15.70 GPA
99+
Poisson rasio
0.28
17
0.28
17
Properties Teknik liyane
ductile
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
6.17
99+
2.64
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
NA
resistivity
615.00 nΩ · m
7
132.00 nΩ · m
24
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.08 10 6 / cm Ω
26
elektron Affinity
48.00 kJ / mol
23
5.03 kJ / mol
38
termal Properties
Kalor tartamtu
0.19 J / (kg K)
32
0.30 J / (kg K)
18
Graham Kapasitas kalor
27.11 J / mol · K
21
26.40 J / mol · K
28
doyo termal
13.40 W / m · K
99+
35.40 W / m · K
37
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
12.10 μm / (m · K)
32
22.50 μm / (m · K)
18
enthalpy
Enthalpy panguapan
399.60 kJ / mol
17
150.00 kJ / mol
99+
Enthalpy saka Fusion
6.20 kJ / mol
99+
9.16 kJ / mol
38
Enthalpy saka atomization
431.00 kJ / mol
16
163.20 kJ / mol
99+
Standard molar Entropy
56.90 J / mol.K
23
55.00 J / mol.K
26
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