1 Tabel périodik
1.1 Symbol
Cr
1.2 Panggil Group
1.3 Panggil periode
1.4 Block
d block
1.5 Family unsur
transisi Metal
1.6 CAS Number
7440473
Rank: 39 (Overall) ▶
7429905
54386242
1.7 Jeneng papan Group
3M Im_
1.8 Space Group Number
229.00
Rank: 1 (Overall) ▶
11
229
2 facts
2.1 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.
2.2 sumber
Found in Minerals, Mining, Ores logam, Ores saka Minerals
2.3 History
2.3.1 sing katutup
Louis Nicolas Vauquelin
2.3.2 Discovery
Ing Antarane 1797 - 1798
2.4 turah mbrawah
2.4.1 Turah mbrawah Ing Universe
1.5 * 10-3 %
Rank: 7 (Overall) ▶
5E-09
0.11
2.4.2 Turah mbrawah Ing Sun
~0.002 %
Rank: 7 (Overall) ▶
1E-08
0.1
2.4.3 Turah mbrawah Ing meteorit
0.30 %
Rank: 7 (Overall) ▶
1.7E-07
22
2.4.4 Turah mbrawah Ing bumi lemah ndhuwur
0.01 %
Rank: 13 (Overall) ▶
9.9E-12
8.1
2.4.5 Turah mbrawah Ing Segara
0.00 %
Rank: 16 (Overall) ▶
2E-23
1.1
2.4.6 Turah mbrawah Ing Manungsa
0.00 %
Rank: 16 (Overall) ▶
1E-13
1.4
3 ulah
3.1 Ulah lan Wuku
Character length exceed error
3.1.1 Ulah Industrial
Industry automobile, Industri Kimia
3.1.2 Ulah Medical
NA
3.1.3 Ulah liyane
wesi
3.2 Properties biologi
3.2.1 keracunan
Highly Toxic
3.2.2 Saiki ing badan Human
Ya
3.2.3 Sang
0.11 Sang / mg dm-3
Rank: 12 (Overall) ▶
0
1970
3.2.4 ing Bone
0.33 ppm
Rank: 21 (Overall) ▶
0
170000
4 fisik
4.1 leleh Point
1,857.00 ° C
Rank: 14 (Overall) ▶
27
3410
4.2 Boiling Point
2,672.00 ° C
Rank: 39 (Overall) ▶
147
5660
4.3 katon
4.3.1 State fisik
Solid
4.3.2 warna
Silver
4.3.3 luster
metallic
4.4 atose
4.4.1 Mohs atose
4.4.2 Brinell atose
687.00 MPa
Rank: 16 (Overall) ▶
0.14
3490
4.4.3 Vickers atose
1,060.00 MPa
Rank: 10 (Overall) ▶
121
3430
4.5 Kacepetan swara
5,940.00 m / s
Rank: 5 (Overall) ▶
818
16200
4.6 Properties Optical
4.6.1 bias Index
ora Sumadhiya
Rank: N/A (Overall) ▶
1.000933
1.7229
4.6.2 reflectivity
ora Sumadhiya
Rank: N/A (Overall) ▶
58
97
4.7 allotropes
Ora
4.7.1 α allotropes
ora Sumadhiya
4.7.2 β allotropes
ora Sumadhiya
4.7.3 γ allotropes
ora Sumadhiya
5 Kimia
5.1 Formula Kimia
Cr
5.2 isotop
5.2.1 Isotop dikenal
5.3 keelektronegatifan
5.3.1 Pauling Elektronegativitas
1.66
Rank: 18 (Overall) ▶
0.7
2.54
5.3.2 Sanderson Elektronegativitas
1.66
Rank: 14 (Overall) ▶
0.22
2.56
5.3.3 Allred Rochow Elektronegativitas
1.56
Rank: 10 (Overall) ▶
0.86
1.82
5.3.4 Mulliken-Jaffe Elektronegativitas
ora Sumadhiya
Rank: N/A (Overall) ▶
0.62
2.48
5.3.5 Allen Elektronegativitas
1.65
Rank: 19 (Overall) ▶
0.659
2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
2.34
Rank: 36 (Overall) ▶
1.46
3.3
5.5 tenogo ionisasi
5.5.1 Level Energy 1st
26,130.00 kJ / mol
Rank: 1 (Overall) ▶
375.7
26130
5.5.2 Level Energy 2
28,750.00 kJ / mol
Rank: 1 (Overall) ▶
710.2162
28750
5.5.3 Level Energy 3rd
34,230.00 kJ / mol
Rank: 1 (Overall) ▶
1600
34230
5.5.4 Level Energy 4
37,066.00 kJ / mol
Rank: 1 (Overall) ▶
2780
37066
5.5.5 Level Energy 5th
97,510.00 kJ / mol
Rank: 1 (Overall) ▶
4305.2
97510
5.5.6 Level Energy 6th
105,800.00 kJ / mol
Rank: 1 (Overall) ▶
5715.8
105800
5.5.7 tingkat Energy 7
114,300.00 kJ / mol
Rank: 1 (Overall) ▶
7226.8
114300
5.5.8 Level Energy 8
125,300.00 kJ / mol
Rank: 1 (Overall) ▶
8857.4
125300
5.5.9 Level Energy 9
134,700.00 kJ / mol
Rank: 1 (Overall) ▶
14110
134700
5.5.10 Level Energy 10th
144,300.00 kJ / mol
Rank: 1 (Overall) ▶
17100
144300
5.5.11 Level Energy 11
26,130.00 kJ / mol
Rank: 12 (Overall) ▶
19900
169988
5.5.12 Level Energy 12
28,750.00 kJ / mol
Rank: 13 (Overall) ▶
22219
189368
5.5.13 Level Energy 13
34,230.00 kJ / mol
Rank: 10 (Overall) ▶
26930
76015
5.5.14 Level Energy 14
37,066.00 kJ / mol
Rank: 12 (Overall) ▶
29196
86450
5.5.15 Level Energy 15
97,510.00 kJ / mol
Rank: 1 (Overall) ▶
41987
97510
5.5.16 Level Energy 16
105,800.00 kJ / mol
Rank: 2 (Overall) ▶
47206
109480
5.5.17 Level Energy 17
114,300.00 kJ / mol
Rank: 3 (Overall) ▶
52737
122200
5.5.18 Level Energy 18
125,300.00 kJ / mol
Rank: 4 (Overall) ▶
58570
134810
5.5.19 Level Energy 19
134,700.00 kJ / mol
Rank: 5 (Overall) ▶
64702
148700
5.5.20 Level Energy 20
144,300.00 kJ / mol
Rank: 7 (Overall) ▶
80400
171200
5.5.21 Level Energy 21
157,700.00 kJ / mol
Rank: 7 (Overall) ▶
87000
179100
5.5.22 Level Energy 22
166,090.00 kJ / mol
Rank: 6 (Overall) ▶
93400
184900
5.5.23 Level Energy 23rd
ora Sumadhiya
Rank: 100 (Overall) ▶
98420
198800
5.5.24 Level Energy 24
ora Sumadhiya
Rank: 100 (Overall) ▶
104400
195200
5.5.25 Level Energy 25th
ora Sumadhiya
Rank: N/A (Overall) ▶
121900
121900
5.5.26 Level Energy 26th
ora Sumadhiya
Rank: N/A (Overall) ▶
127700
127700
5.5.27 Level Energy 27th
ora Sumadhiya
Rank: N/A (Overall) ▶
133800
133800
5.5.28 Level Energy 28th
ora Sumadhiya
Rank: N/A (Overall) ▶
139800
139800
5.5.29 Level Energy 29
ora Sumadhiya
Rank: N/A (Overall) ▶
148100
148100
5.5.30 Level Energy 30
ora Sumadhiya
Rank: N/A (Overall) ▶
154500
154500
5.6 padha karo elektrokimia
0.32 g / amp-day
Rank: 73 (Overall) ▶
0.16812
8.3209
5.7 Fungsi Work elektron
4.50 eV
Rank: 14 (Overall) ▶
2.14
5.65
5.8 Properties Kimia liyane
anti Corrosion, Kimia Stabilitas, ionisasi, Isotop radioaktif, kelarutan
6 atom
6.1 Panggil atom
6.2 Konfigurasi elektron
[Ar] 3d 5 4s 1
6.3 Struktur Crystal
Body tengah kubik (Bcc)
6.3.1 Crystal pola
6.4 atom
6.4.1 Jumlah proton
6.4.2 Jumlah Neutron
6.4.3 Jumlah Èlèktron
6.5 Radius saka Atom
6.5.1 Radius atom
128.00 pm
Rank: 46 (Overall) ▶
112
265
6.5.2 kovalen Radius
139.00 pm
Rank: 45 (Overall) ▶
96
260
6.5.3 Van der Waals Radius
200.00 pm
Rank: 28 (Overall) ▶
139
348
6.6 Bobot atom
52.00 Amu
Rank: 76 (Overall) ▶
6.94
294
6.7 Volume atom
7.23 cm3 / mol
Rank: 60 (Overall) ▶
1.39
71.07
6.8 Nomer atom jejer
6.8.1 unsur Previous
6.8.2 Sabanjure unsur
6.9 Potensi Valence Electron
170.00 (-eV)
Rank: 4 (Overall) ▶
8
392.42
6.10 Constant pola
291.00 pm
Rank: 62 (Overall) ▶
228.58
891.25
6.11 pola Angles
π/2, π/2, π/2
6.12 Pola C / A rasio
ora Sumadhiya
Rank: N/A (Overall) ▶
1.567
1.886
7 Teknik
7.1 Kapadhetan
7.1.1 Kapadhetan Ing suhu kamar
7.19 g / cm 3
Rank: 58 (Overall) ▶
0.534
40.7
7.1.2 Kapadhetan Nalika Liquid (ing mp)
6.30 g / cm3
Rank: 40 (Overall) ▶
0.512
20
7.2 Strength tensile
689.00 MPa
Rank: 7 (Overall) ▶
2.5
11000
7.3 viskositas
ora Sumadhiya
Rank: N/A (Overall) ▶
0.001526
0.001526
7.4 meksa beluk
7.4.1 Meksa beluk ing 1000 K
0.00 (Pa)
Rank: 24 (Overall) ▶
2.47E-11
121
7.4.2 Meksa beluk ing 2000 K
774.00 (Pa)
Rank: 1 (Overall) ▶
2.62E-10
774
7.5 situs kelenturan
7.5.1 nyukur pengaturan
115.00 GPA
Rank: 9 (Overall) ▶
1.3
222
7.5.2 pengaturan akeh
160.00 GPA
Rank: 11 (Overall) ▶
1.6
462
7.5.3 Young kang pengaturan
279.00 GPA
Rank: 8 (Overall) ▶
1.7
528
7.6 Poisson rasio
0.21
Rank: 32 (Overall) ▶
0.032
0.47
7.7 Properties Teknik liyane
NA
8 Magnetic
8.1 Ciri Magnetic
8.1.1 Gravitasi tartamtu
7.19
Rank: 46 (Overall) ▶
0.53
4500
8.1.2 Nindakake Magnetic
Antiferromagnetic
8.1.3 permeabilitas
ora Sumadhiya
Rank: N/A (Overall) ▶
1.25643E-06
0.0063
8.1.4 kelemahan
ora Sumadhiya
Rank: N/A (Overall) ▶
-0.000166
200000
8.2 Properties Listrik
8.2.1 Property Listrik
NA
8.2.2 resistivity
125.00 nΩ · m
Rank: 27 (Overall) ▶
0.18
961
8.2.3 konduktivitas listrik
0.08 10 6 / cm Ω
Rank: 25 (Overall) ▶
0.00666
0.63
8.2.4 elektron Affinity
64.30 kJ / mol
Rank: 15 (Overall) ▶
0
222.8
9 termal
9.1 Kalor tartamtu
0.45 J / (kg K)
Rank: 12 (Overall) ▶
0.11
3.6
9.2 Graham Kapasitas kalor
23.35 J / mol · K
Rank: 55 (Overall) ▶
16.443
62.7
9.3 doyo termal
93.90 W / m · K
Rank: 17 (Overall) ▶
6.3
429
9.4 suhu kritis
ora Sumadhiya
Rank: N/A (Overall) ▶
26.3
3223
9.5 Expansion termal
4.90 μm / (m · K)
Rank: 57 (Overall) ▶
4.5
97
9.6 enthalpy
9.6.1 Enthalpy panguapan
348.80 kJ / mol
Rank: 24 (Overall) ▶
7.32
799.1
9.6.2 Enthalpy saka Fusion
15.31 kJ / mol
Rank: 20 (Overall) ▶
2.1
35.23
9.6.3 Enthalpy saka atomization
397.50 kJ / mol
Rank: 21 (Overall) ▶
61.5
837
9.7 Standard molar Entropy
23.80 J / mol.K
Rank: 57 (Overall) ▶
9.5
198.1