Symbol
Cr
Sg
Panggil Group
66
0
17
👆🏻
Panggil periode
47
2
7
👆🏻
Block
d block
d block
Family unsur
transisi Metal
transisi Metal
CAS Number
744047354038812
7429905
54386242
👆🏻
Jeneng papan Group
3M Im_
-
Space Group Number
229.00166.00
11
276
👆🏻
Facts Interesting
- 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.
- Seaborgium paling stabil isotop punika Sg lan wis 2.1 min gesang half-.
- Lan isotop saka Seaborgium wis setengah urip minangka short minangka 3 ms.
sumber
Found in Minerals, Mining, Ores logam, Ores saka Minerals
sintetik Diprodhuksi
History
sing katutup
Louis Nicolas Vauquelin
Lawrence Berkeley National Laboratory
Discovery
Ing Antarane 1797 - 1798
ing 1974
turah mbrawah
Turah mbrawah Ing Universe
0.00 %0.00 %
0
0.11
👆🏻
Turah mbrawah Ing Sun
0.00 %-
0
0.1
👆🏻
Turah mbrawah Ing meteorit
0.30 %-
0
22
👆🏻
Turah mbrawah Ing bumi lemah ndhuwur
0.01 %-
1E-37
8.1
👆🏻
Turah mbrawah Ing Segara
0.00 %-
0
1.1
👆🏻
Turah mbrawah Ing Manungsa
0.00 %-
0
1.4
👆🏻
Ulah lan Wuku
- 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.
- Efesus saiki dikenal saka logam Seaborgium sing winates kanggo riset waé mung.
Ulah Industrial
Industry automobile, Industri Kimia
-
Ulah Medical
-
-
Ulah liyane
wesi
tujuan Research
Properties biologi
keracunan
Highly Toxic
-
Saiki ing badan Human
Ya
Ora
Sang
0.11 Sang / mg dm-30.00 Sang / mg dm-3
0
1970
👆🏻
ing Bone
0.33 ppm0.00 ppm
0
170000
👆🏻
leleh Point
1,857.00 ° C-
-38.83
3410
👆🏻
Boiling Point
2,672.00 ° C0.00 ° C
0
5660
👆🏻
katon
State fisik
Solid
Solid
warna
Silver
-
luster
metallic
Unknown Luster
atose
Mohs atose
8.506.00
0.2
8.5
👆🏻
Brinell atose
687.00 MPa400.00 MPa
0.14
3490
👆🏻
Vickers atose
1,060.00 MPa520.00 MPa
0
3920
👆🏻
Kacepetan swara
5,940.00 m / s3,200.00 m / s
818
16200
👆🏻
Properties Optical
bias Index
2.971.30
0.155
3.41
👆🏻
reflectivity
70.00 %68.00 %
5
97
👆🏻
allotropes
Ora
Ora
α allotropes
-
-
β allotropes
-
-
γ allotropes
-
-
Formula Kimia
Cr
Sg
isotop
Isotop dikenal
219
0
38
👆🏻
keelektronegatifan
Pauling Elektronegativitas
1.660.00
0
2.6
👆🏻
Sanderson Elektronegativitas
1.661.90
0.22
2.56
👆🏻
Allred Rochow Elektronegativitas
1.561.30
0.86
1.9
👆🏻
Mulliken-Jaffe Elektronegativitas
1.661.30
0.62
2.48
👆🏻
Allen Elektronegativitas
1.651.90
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
2.342.20
1.46
3.3
👆🏻
tenogo ionisasi
Level Energy 1st
26,130.00 kJ / mol757.40 kJ / mol
375.7
26130
👆🏻
Level Energy 2
28,750.00 kJ / mol1,732.90 kJ / mol
392.8
28750
👆🏻
Level Energy 3rd
34,230.00 kJ / mol2,483.50 kJ / mol
392.8
34230
👆🏻
Level Energy 4
37,066.00 kJ / mol3,415.60 kJ / mol
375.7
37066
👆🏻
Level Energy 5th
97,510.00 kJ / mol4,561.80 kJ / mol
392
97510
👆🏻
Level Energy 6th
105,800.00 kJ / mol5,715.80 kJ / mol
1007
105800
👆🏻
tingkat Energy 7
114,300.00 kJ / mol5,700.00 kJ / mol
1007
114300
👆🏻
Level Energy 8
125,300.00 kJ / mol5,700.00 kJ / mol
730
125300
👆🏻
Level Energy 9
134,700.00 kJ / mol5,710.00 kJ / mol
1007
134700
👆🏻
Level Energy 10th
144,300.00 kJ / mol6,270.00 kJ / mol
392
144300
👆🏻
Level Energy 11
26,130.00 kJ / mol6,600.00 kJ / mol
392
169988
👆🏻
Level Energy 12
28,750.00 kJ / mol971.00 kJ / mol
0
189368
👆🏻
Level Energy 13
34,230.00 kJ / mol5,700.00 kJ / mol
1007
76015
👆🏻
Level Energy 14
37,066.00 kJ / mol5,700.00 kJ / mol
380
86450
👆🏻
Level Energy 15
97,510.00 kJ / mol54,000.00 kJ / mol
33000
100700
👆🏻
Level Energy 16
105,800.00 kJ / mol64,000.00 kJ / mol
375.7
109480
👆🏻
Level Energy 17
114,300.00 kJ / mol579.80 kJ / mol
375.7
122200
👆🏻
Level Energy 18
125,300.00 kJ / mol3,300.00 kJ / mol
0
134810
👆🏻
Level Energy 19
134,700.00 kJ / mol579.80 kJ / mol
375.7
148700
👆🏻
Level Energy 20
144,300.00 kJ / mol579.00 kJ / mol
0
171200
👆🏻
Level Energy 21
157,700.00 kJ / mol6,270.00 kJ / mol
375.7
179100
👆🏻
Level Energy 22
166,090.00 kJ / mol573.00 kJ / mol
330
184900
👆🏻
Level Energy 23rd
653.80 kJ / mol5,790.00 kJ / mol
357.6
198800
👆🏻
Level Energy 24
653.80 kJ / mol971.00 kJ / mol
297.3
195200
👆🏻
Level Energy 25th
653.80 kJ / mol0.00 kJ / mol
0
121900
👆🏻
Level Energy 26th
653.80 kJ / mol579.10 kJ / mol
357.6
127700
👆🏻
Level Energy 27th
652.90 kJ / mol870.00 kJ / mol
0
133800
👆🏻
Level Energy 28th
653.80 kJ / mol870.00 kJ / mol
297.3
139800
👆🏻
Level Energy 29
653.80 kJ / mol761.90 kJ / mol
0
148100
👆🏻
Level Energy 30
653.80 kJ / mol0.00 kJ / mol
0
154500
👆🏻
padha karo elektrokimia
0.32 g / amp-day3.20 g / amp-day
0.16812
8.3209
👆🏻
Fungsi Work elektron
4.50 eV6.00 eV
2.14
6
👆🏻
Properties Kimia liyane
anti Corrosion, Kimia Stabilitas, ionisasi, Isotop radioaktif, kelarutan
-
Panggil atom
24106
3
117
👆🏻
Konfigurasi elektron
[Ar] 3d 5 4s 1
[Rn] 5F 14 6D 2 7s 2
Struktur Crystal
Body tengah kubik (Bcc)
Body tengah kubik (Bcc)
Crystal pola
atom
Jumlah proton
24106
3
117
👆🏻
Jumlah Neutron
28157
4
285
👆🏻
Jumlah Èlèktron
24106
3
117
👆🏻
Radius saka Atom
Radius atom
128.00 pm132.00 pm
0
348
👆🏻
kovalen Radius
139.00 pm143.00 pm
0
260
👆🏻
Van der Waals Radius
200.00 pm230.00 pm
0
348
👆🏻
Bobot atom
52.00 Amu269.00 Amu
6.94
294
👆🏻
Volume atom
7.23 cm3 / mol35.00 cm3 / mol
1.39
71.07
👆🏻
Nomer atom jejer
unsur Previous
Sabanjure unsur
Potensi Valence Electron
170.00 (-eV)6.10 (-eV)
0
392.42
👆🏻
Constant pola
291.00 pm-
0
891.25
👆🏻
pola Angles
π/2, π/2, π/2
-
Pola C / A rasio
1.861.36
0.423
1.9
👆🏻
Kapadhetan
Kapadhetan Ing suhu kamar
7.19 g / cm 335.00 g / cm 3
0.534
40.7
👆🏻
Kapadhetan Nalika Liquid (ing mp)
6.30 g / cm335.00 g / cm3
0.512
41
👆🏻
Strength tensile
689.00 MPa30.00 MPa
0.1
11000
👆🏻
viskositas
0.000.00
1.5E-05
0.0035
👆🏻
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa)0.00 (Pa)
0
121
👆🏻
Meksa beluk ing 2000 K
774.00 (Pa)0.00 (Pa)
0
774
👆🏻
situs kelenturan
nyukur pengaturan
115.00 GPA30.00 GPA
1.3
222
👆🏻
pengaturan akeh
160.00 GPA0.00 GPA
0
462
👆🏻
Young kang pengaturan
279.00 GPA12.60 GPA
0
528
👆🏻
Poisson rasio
0.210.25
0.032
0.47
👆🏻
Properties Teknik liyane
-
-
Ciri Magnetic
Gravitasi tartamtu
7.1935.00
0.53
4500
👆🏻
Nindakake Magnetic
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
125.00 nΩ · m0.38 nΩ · m
0.1
961
👆🏻
konduktivitas listrik
0.08 10 6 / cm Ω0.00 10 6 / cm Ω
0
0.63
👆🏻
elektron Affinity
64.30 kJ / mol50.00 kJ / mol
0
222.8
👆🏻
Kalor tartamtu
0.45 J / (kg K)0.27 J / (kg K)
0.1
3.6
👆🏻
Graham Kapasitas kalor
23.35 J / mol · K35.00 J / mol · K
13.1
62.7
👆🏻
doyo termal
93.90 W / m · K0.14 W / m · K
0
429
👆🏻
suhu kritis
1,907.00 K1,200.00 K
26.3
3695
👆🏻
Expansion termal
4.90 μm / (m · K)11.00 μm / (m · K)
4.5
97
👆🏻
enthalpy
Enthalpy panguapan
348.80 kJ / mol585.00 kJ / mol
7.32
799.1
👆🏻
Enthalpy saka Fusion
15.31 kJ / mol-
2.1
35.23
👆🏻
Enthalpy saka atomization
397.50 kJ / mol650.00 kJ / mol
61.5
837
👆🏻
Standard molar Entropy
23.80 J / mol.K42.70 J / mol.K
9.5
198.1
👆🏻