strontium mungsuh barium
Tabel périodik
Symbol
Sr
Ba
Panggil Group
2
16
2
16
Panggil periode
5
6
Block
s pemblokiran
s pemblokiran
Family unsur
alkalin bumi
alkalin bumi
CAS Number
7440246
99+
7440393
99+
Jeneng papan Group
Fm_ 3M
3M Im_
Space Group Number
225.00
2
229.00
1
facts
Facts Interesting
- unsur strontium alus saka Calcium.
- Perak Strontium dadi kuning, yen kapapar online.
Character length exceed error
sumber
Found in Minerals, Mining, Ores saka Minerals
bumi lemah ndhuwur, Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
William Cruickshank
Carl Wilhelm Scheele
Discovery
ing 1787
ing taun 1772
turah mbrawah
Turah mbrawah Ing Universe
4 * 10-6 %
14
1 * 10-6 %
16
Turah mbrawah Ing Sun
~0.000005 %
15
~0.000001 %
18
Turah mbrawah Ing meteorit
0.00 %
15
0.00 %
20
Turah mbrawah Ing bumi lemah ndhuwur
0.04 %
10
0.03 %
11
Turah mbrawah Ing Segara
0.00 %
4
0.00 %
8
Turah mbrawah Ing Manungsa
0.00 %
7
0.00 %
12
ulah
Ulah lan Wuku
Character length exceed error
- Punika digugat ing Manufaktur Paint kimia lan Manufaktur kaca.
- Senyawa saka logam beracun; nanging isih barium sulfat punika insoluble lan diwenehi kanggo patients gerah saka kelainan pencernaan.
Ulah Industrial
Industry amunisi, Industri Kimia
Industry amunisi, Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi
Properties biologi
keracunan
non Toxic
Low Toxic
Saiki ing badan Human
Ya
Ya
Sang
0.03 Sang / mg dm-3
19
0.07 Sang / mg dm-3
15
ing Bone
140.00 ppm
7
70.00 ppm
9
fisik Properties
leleh Point
769.00 ° C
99+
725.00 ° C
99+
Boiling Point
1,384.00 ° C
99+
1,140.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Gray
luster
metallic
NA
atose
Mohs atose
1.50
18
1.25
19
Kacepetan swara
ora Sumadhiya
1,620.00 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
Ba
isotop
Isotop dikenal
27
12
37
2
keelektronegatifan
Pauling Elektronegativitas
0.95
99+
0.89
99+
Sanderson Elektronegativitas
0.72
27
0.68
28
Allred Rochow Elektronegativitas
0.99
37
0.97
38
Mulliken-Jaffe Elektronegativitas
1.00
18
0.88
22
Allen Elektronegativitas
0.96
40
0.88
99+
Electropositivity
Pauling Electropositivity
3.05
7
3.11
4
tenogo ionisasi
Level Energy 1st
549.50 kJ / mol
99+
502.90 kJ / mol
99+
Level Energy 2
1,064.20 kJ / mol
99+
965.20 kJ / mol
99+
Level Energy 3rd
4,138.00 kJ / mol
10
3,600.00 kJ / mol
14
Level Energy 4
5,500.00 kJ / mol
13
ora Sumadhiya
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+
2.56 g / amp-day
20
Fungsi Work elektron
2.59 eV
99+
2.70 eV
99+
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
38
99+
56
99+
Konfigurasi elektron
[Kr] 5S 2
[Xe] 6s 2
Struktur Crystal
Face tengah kubik (FCC)
Body tengah kubik (Bcc)
Crystal pola
FCC-Crystal-Structure-of-Strontium.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
38
99+
56
99+
Jumlah Neutron
50
99+
81
99+
Jumlah Èlèktron
38
99+
56
99+
Radius saka Atom
Radius atom
215.00 pm
5
222.00 pm
4
kovalen Radius
195.00 pm
15
215.00 pm
5
Van der Waals Radius
249.00 pm
7
268.00 pm
6
Bobot atom
87.62 Amu
99+
137.33 Amu
99+
Volume atom
33.70 cm3 / mol
6
39.24 cm3 / mol
5
Nomer atom jejer
Potensi Valence Electron
25.70 (-eV)
99+
21.30 (-eV)
99+
Constant pola
608.49 pm
6
502.80 pm
15
pola Angles
π/2, π/2, π/2
π/2, π/2, π/2
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
2.64 g / cm 3
99+
3.51 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
2.38 g / cm3
99+
3.34 g / cm3
99+
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
121.00 (Pa)
1
7.11 (Pa)
6
situs kelenturan
nyukur pengaturan
6.03 GPA
99+
4.90 GPA
99+
pengaturan akeh
ora Sumadhiya
9.60 GPA
99+
Young kang pengaturan
15.70 GPA
99+
13.00 GPA
99+
Poisson rasio
0.28
17
ora Sumadhiya
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
2.64
99+
3.62
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
NA
superconductor
resistivity
132.00 nΩ · m
24
332.00 nΩ · m
13
konduktivitas listrik
0.08 10 6 / cm Ω
26
0.03 10 6 / cm Ω
40
elektron Affinity
5.03 kJ / mol
38
13.95 kJ / mol
36
termal Properties
Kalor tartamtu
0.30 J / (kg K)
18
0.20 J / (kg K)
30
Graham Kapasitas kalor
26.40 J / mol · K
28
28.07 J / mol · K
12
doyo termal
35.40 W / m · K
37
18.40 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
22.50 μm / (m · K)
18
20.60 μm / (m · K)
22
enthalpy
Enthalpy panguapan
150.00 kJ / mol
99+
140.00 kJ / mol
99+
Enthalpy saka Fusion
9.16 kJ / mol
38
7.66 kJ / mol
99+
Enthalpy saka atomization
163.20 kJ / mol
99+
175.70 kJ / mol
99+
Standard molar Entropy
55.00 J / mol.K
26
62.50 J / mol.K
20
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