Symbol
Sr
Cr
Panggil Group
26
0
17
👆🏻
Panggil periode
54
2
7
👆🏻
Block
s pemblokiran
d block
Family unsur
alkalin bumi
transisi Metal
CAS Number
74402467440473
7429905
54386242
👆🏻
Jeneng papan Group
Fm_ 3M
3M Im_
Space Group Number
225.00229.00
11
276
👆🏻
Facts Interesting
- unsur strontium alus saka Calcium.
- Perak Strontium dadi kuning, yen kapapar online.
- Krom punika reaktif, Empu durung ketemu gratis ing alam.
- Ores saka Chromites Mineral sing sumber utama saka logam Krom.
- Meh 90% penyamakan kulit wis rampung karo bantuan saka krom.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores logam, Ores saka Minerals
History
sing katutup
William Cruickshank
Louis Nicolas Vauquelin
Discovery
ing 1787
Ing Antarane 1797 - 1798
turah mbrawah
Turah mbrawah Ing Universe
0.00 %0.00 %
0
0.11
👆🏻
Turah mbrawah Ing Sun
0.00 %0.00 %
0
0.1
👆🏻
Turah mbrawah Ing meteorit
0.00 %0.30 %
0
22
👆🏻
Turah mbrawah Ing bumi lemah ndhuwur
0.04 %0.01 %
1E-37
8.1
👆🏻
Turah mbrawah Ing Segara
0.00 %0.00 %
0
1.1
👆🏻
Turah mbrawah Ing Manungsa
0.00 %0.00 %
0
1.4
👆🏻
Ulah lan Wuku
- Logam strontium digunakake kanggo ngasilake magnet ferit uga nyaring seng.
- Produk sampingan saka reaktor nuklir sing diarani Strontium-90 yaiku isotop radioaktif; diserep dening jaringan lan ngrusak sumsum balung lan wutah kanker.
- Iki digunakake kanggo harden baja lan mrodhuksi stainless steel lan macem-macem wesi liyane.
- Iki uga digunakake kanggo menehi finish sing tepat kanggo mirrors polesan. Piring kromium digunakake ing perlengkapan jedhing.
Ulah Industrial
Industry amunisi, Industri Kimia
Industry automobile, Industri Kimia
Ulah Medical
-
-
Ulah liyane
wesi
wesi
Properties biologi
keracunan
non Toxic
Highly Toxic
Saiki ing badan Human
Ya
Ya
Sang
0.03 Sang / mg dm-30.11 Sang / mg dm-3
0
1970
👆🏻
ing Bone
140.00 ppm0.33 ppm
0
170000
👆🏻
leleh Point
769.00 ° C1,857.00 ° C
-38.83
3410
👆🏻
Boiling Point
1,384.00 ° C2,672.00 ° C
0
5660
👆🏻
katon
State fisik
Solid
Solid
warna
perak Putih
Silver
luster
metallic
metallic
atose
Mohs atose
1.508.50
0.2
8.5
👆🏻
Brinell atose
110.00 MPa687.00 MPa
0.14
3490
👆🏻
Vickers atose
15.00 MPa1,060.00 MPa
0
3920
👆🏻
Kacepetan swara
4,170.00 m / s5,940.00 m / s
818
16200
👆🏻
Properties Optical
bias Index
1.432.97
0.155
3.41
👆🏻
reflectivity
65.00 %70.00 %
5
97
👆🏻
allotropes
Ora
Ora
α allotropes
-
-
β allotropes
-
-
γ allotropes
-
-
Formula Kimia
Sr
Cr
isotop
Isotop dikenal
2721
0
38
👆🏻
keelektronegatifan
Pauling Elektronegativitas
0.951.66
0
2.6
👆🏻
Sanderson Elektronegativitas
0.721.66
0.22
2.56
👆🏻
Allred Rochow Elektronegativitas
0.991.56
0.86
1.9
👆🏻
Mulliken-Jaffe Elektronegativitas
1.001.66
0.62
2.48
👆🏻
Allen Elektronegativitas
0.961.65
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
3.052.34
1.46
3.3
👆🏻
tenogo ionisasi
Level Energy 1st
549.50 kJ / mol26,130.00 kJ / mol
375.7
26130
👆🏻
Level Energy 2
1,064.20 kJ / mol28,750.00 kJ / mol
392.8
28750
👆🏻
Level Energy 3rd
4,138.00 kJ / mol34,230.00 kJ / mol
392.8
34230
👆🏻
Level Energy 4
5,500.00 kJ / mol37,066.00 kJ / mol
375.7
37066
👆🏻
Level Energy 5th
6,910.00 kJ / mol97,510.00 kJ / mol
392
97510
👆🏻
Level Energy 6th
8,760.00 kJ / mol105,800.00 kJ / mol
1007
105800
👆🏻
tingkat Energy 7
10,230.00 kJ / mol114,300.00 kJ / mol
1007
114300
👆🏻
Level Energy 8
11,800.00 kJ / mol125,300.00 kJ / mol
730
125300
👆🏻
Level Energy 9
15,600.00 kJ / mol134,700.00 kJ / mol
1007
134700
👆🏻
Level Energy 10th
17,100.00 kJ / mol144,300.00 kJ / mol
392
144300
👆🏻
Level Energy 11
31,270.00 kJ / mol26,130.00 kJ / mol
392
169988
👆🏻
Level Energy 12
5,490.00 kJ / mol28,750.00 kJ / mol
0
189368
👆🏻
Level Energy 13
5,490.00 kJ / mol34,230.00 kJ / mol
1007
76015
👆🏻
Level Energy 14
5,490.00 kJ / mol37,066.00 kJ / mol
380
86450
👆🏻
Level Energy 15
54,900.00 kJ / mol97,510.00 kJ / mol
33000
100700
👆🏻
Level Energy 16
54,900.00 kJ / mol105,800.00 kJ / mol
375.7
109480
👆🏻
Level Energy 17
549.50 kJ / mol114,300.00 kJ / mol
375.7
122200
👆🏻
Level Energy 18
5,490.00 kJ / mol125,300.00 kJ / mol
0
134810
👆🏻
Level Energy 19
549.50 kJ / mol134,700.00 kJ / mol
375.7
148700
👆🏻
Level Energy 20
549.00 kJ / mol144,300.00 kJ / mol
0
171200
👆🏻
Level Energy 21
549.50 kJ / mol157,700.00 kJ / mol
375.7
179100
👆🏻
Level Energy 22
549.00 kJ / mol166,090.00 kJ / mol
330
184900
👆🏻
Level Energy 23rd
549.50 kJ / mol653.80 kJ / mol
357.6
198800
👆🏻
Level Energy 24
549.50 kJ / mol653.80 kJ / mol
297.3
195200
👆🏻
Level Energy 25th
549.00 kJ / mol653.80 kJ / mol
0
121900
👆🏻
Level Energy 26th
549.50 kJ / mol653.80 kJ / mol
357.6
127700
👆🏻
Level Energy 27th
549.50 kJ / mol652.90 kJ / mol
0
133800
👆🏻
Level Energy 28th
549.50 kJ / mol653.80 kJ / mol
297.3
139800
👆🏻
Level Energy 29
549.50 kJ / mol653.80 kJ / mol
0
148100
👆🏻
Level Energy 30
549.50 kJ / mol653.80 kJ / mol
0
154500
👆🏻
padha karo elektrokimia
1.64 g / amp-day0.32 g / amp-day
0.16812
8.3209
👆🏻
Fungsi Work elektron
2.59 eV4.50 eV
2.14
6
👆🏻
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
anti Corrosion, Kimia Stabilitas, ionisasi, Isotop radioaktif, kelarutan
Panggil atom
3824
3
117
👆🏻
Konfigurasi elektron
[Kr] 5S 2
[Ar] 3d 5 4s 1
Struktur Crystal
Face tengah kubik (FCC)
Body tengah kubik (Bcc)
Crystal pola
atom
Jumlah proton
3824
3
117
👆🏻
Jumlah Neutron
5028
4
285
👆🏻
Jumlah Èlèktron
3824
3
117
👆🏻
Radius saka Atom
Radius atom
215.00 pm128.00 pm
0
348
👆🏻
kovalen Radius
195.00 pm139.00 pm
0
260
👆🏻
Van der Waals Radius
249.00 pm200.00 pm
0
348
👆🏻
Bobot atom
87.62 Amu52.00 Amu
6.94
294
👆🏻
Volume atom
33.70 cm3 / mol7.23 cm3 / mol
1.39
71.07
👆🏻
Nomer atom jejer
unsur Previous
Sabanjure unsur
Potensi Valence Electron
25.70 (-eV)170.00 (-eV)
0
392.42
👆🏻
Constant pola
608.49 pm291.00 pm
0
891.25
👆🏻
pola Angles
π/2, π/2, π/2
π/2, π/2, π/2
Pola C / A rasio
1.571.86
0.423
1.9
👆🏻
Kapadhetan
Kapadhetan Ing suhu kamar
2.64 g / cm 37.19 g / cm 3
0.534
40.7
👆🏻
Kapadhetan Nalika Liquid (ing mp)
2.38 g / cm36.30 g / cm3
0.512
41
👆🏻
Strength tensile
170.00 MPa689.00 MPa
0.1
11000
👆🏻
viskositas
0.000.00
1.5E-05
0.0035
👆🏻
meksa beluk
Meksa beluk ing 1000 K
121.00 (Pa)0.00 (Pa)
0
121
👆🏻
Meksa beluk ing 2000 K
0.00 (Pa)774.00 (Pa)
0
774
👆🏻
situs kelenturan
nyukur pengaturan
6.03 GPA115.00 GPA
1.3
222
👆🏻
pengaturan akeh
11.00 GPA160.00 GPA
0
462
👆🏻
Young kang pengaturan
15.70 GPA279.00 GPA
0
528
👆🏻
Poisson rasio
0.280.21
0.032
0.47
👆🏻
Properties Teknik liyane
-
-
Ciri Magnetic
Gravitasi tartamtu
2.647.19
0.53
4500
👆🏻
Nindakake Magnetic
paramagnetic
Antiferromagnetic
permeabilitas
0.00 H / m0.00 H / m
1.25643E-06
0.0063
👆🏻
kelemahan
0.000.00
-0.000166
200000
👆🏻
Properties Listrik
Property Listrik
-
-
resistivity
132.00 nΩ · m125.00 nΩ · m
0.1
961
👆🏻
konduktivitas listrik
0.08 10 6 / cm Ω0.08 10 6 / cm Ω
0
0.63
👆🏻
elektron Affinity
5.03 kJ / mol64.30 kJ / mol
0
222.8
👆🏻
Kalor tartamtu
0.30 J / (kg K)0.45 J / (kg K)
0.1
3.6
👆🏻
Graham Kapasitas kalor
26.40 J / mol · K23.35 J / mol · K
13.1
62.7
👆🏻
doyo termal
35.40 W / m · K93.90 W / m · K
0
429
👆🏻
suhu kritis
1,050.00 K1,907.00 K
26.3
3695
👆🏻
Expansion termal
22.50 μm / (m · K)4.90 μm / (m · K)
4.5
97
👆🏻
enthalpy
Enthalpy panguapan
150.00 kJ / mol348.80 kJ / mol
7.32
799.1
👆🏻
Enthalpy saka Fusion
9.16 kJ / mol15.31 kJ / mol
2.1
35.23
👆🏻
Enthalpy saka atomization
163.20 kJ / mol397.50 kJ / mol
61.5
837
👆🏻
Standard molar Entropy
55.00 J / mol.K23.80 J / mol.K
9.5
198.1
👆🏻