mbandhingaké krom lan Iron
Tabel périodik
Symbol
Cr
Fe
Panggil Group
6
12
8
10
Panggil periode
4
4
Block
d block
d block
Family unsur
transisi Metal
transisi Metal
CAS Number
7440473
39
7439896
99+
Jeneng papan Group
3M Im_
3M Im_
Space Group Number
229.00
1
229.00
1
facts
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.
- Iron ora tansah Magnetik ing alam, allotrope sawijining ferromagnetic lan B allotrope punika nonmagnetic.
- getih kasusun Iron in molekul hemoglobin kanggo nransfer Oksigen ing awak.
sumber
Found in Minerals, Mining, Ores logam, Ores saka Minerals
bumi lemah ndhuwur, Found in Minerals
History
sing katutup
Louis Nicolas Vauquelin
Unknown
Discovery
Ing Antarane 1797 - 1798
Sadurunge 5000 BC
turah mbrawah
Turah mbrawah Ing Universe
1.5 * 10-3 %
7
1.1 * 10-1 %
1
Turah mbrawah Ing Sun
~0.002 %
7
~0.1 %
1
Turah mbrawah Ing meteorit
0.30 %
7
22.00 %
1
Turah mbrawah Ing bumi lemah ndhuwur
0.01 %
13
6.30 %
2
Turah mbrawah Ing Segara
0.00 %
16
0.00 %
12
Turah mbrawah Ing Manungsa
0.00 %
16
0.01 %
5
ulah
Ulah lan Wuku
Character length exceed error
- logam campuran baja logam wesi digunakake ing aplikasi saka sipil lan Manufaktur.
- Wesi wesi karo nikel, vanadium, krom, tungsten lan manganese kudu banget migunani.
Ulah Industrial
Industry automobile, Industri Kimia
Industry Aerospace, Industry automobile, Industri Kimia, Industry Listrik, Industry Elektronik
Ulah Medical
NA
Industry Pharmaceutical, Surgical Instruments Manufacturing
Ulah liyane
wesi
wesi, patung, Statues
Properties biologi
keracunan
Highly Toxic
non Toxic
Saiki ing badan Human
Ya
Ya
Sang
0.11 Sang / mg dm-3
12
447.00 Sang / mg dm-3
3
ing Bone
0.33 ppm
21
380.00 ppm
5
fisik Properties
leleh Point
1,857.00 ° C
14
1,535.00 ° C
25
Boiling Point
2,672.00 ° C
39
2,750.00 ° C
37
katon
State fisik
Solid
Solid
warna
Silver
Gray
luster
metallic
metallic
atose
Mohs atose
8.50
1
4.00
10
Brinell atose
687.00 MPa
16
200.00 MPa
40
Vickers atose
1,060.00 MPa
10
608.00 MPa
18
Kacepetan swara
5,940.00 m / s
5
5,120.00 m / s
8
Properties Optical
reflectivity
ora Sumadhiya
65.00 %
12
allotropes
Ora
Ya
α allotropes
ora Sumadhiya
Ferrite (alpha Iron)
β allotropes
ora Sumadhiya
beta Iron
γ allotropes
ora Sumadhiya
gamma Iron
Kimia Properties
Formula Kimia
Cr
Fe
isotop
Isotop dikenal
21
18
26
13
keelektronegatifan
Pauling Elektronegativitas
1.66
18
1.83
14
Sanderson Elektronegativitas
1.66
14
2.20
7
Allred Rochow Elektronegativitas
1.56
10
1.64
8
Allen Elektronegativitas
1.65
19
1.80
12
Electropositivity
Pauling Electropositivity
2.34
36
2.17
40
tenogo ionisasi
Level Energy 1st
26,130.00 kJ / mol
1
762.50 kJ / mol
17
Level Energy 2
28,750.00 kJ / mol
1
1,561.90 kJ / mol
36
Level Energy 3rd
34,230.00 kJ / mol
1
2,957.00 kJ / mol
29
Level Energy 4
37,066.00 kJ / mol
1
5,290.00 kJ / mol
16
Level Energy 5th
97,510.00 kJ / mol
1
7,240.00 kJ / mol
16
Level Energy 6th
105,800.00 kJ / mol
1
9,560.00 kJ / mol
14
tingkat Energy 7
114,300.00 kJ / mol
1
12,060.00 kJ / mol
15
Level Energy 8
125,300.00 kJ / mol
1
14,580.00 kJ / mol
14
Level Energy 9
134,700.00 kJ / mol
1
22,540.00 kJ / mol
5
Level Energy 10th
144,300.00 kJ / mol
1
25,290.00 kJ / mol
8
Level Energy 11
26,130.00 kJ / mol
12
28,000.00 kJ / mol
9
Level Energy 12
28,750.00 kJ / mol
13
31,920.00 kJ / mol
9
Level Energy 13
34,230.00 kJ / mol
10
34,830.00 kJ / mol
9
Level Energy 14
37,066.00 kJ / mol
12
37,840.00 kJ / mol
11
Level Energy 15
97,510.00 kJ / mol
1
44,100.00 kJ / mol
11
Level Energy 16
105,800.00 kJ / mol
2
47,206.00 kJ / mol
13
Level Energy 17
114,300.00 kJ / mol
3
122,200.00 kJ / mol
1
Level Energy 18
125,300.00 kJ / mol
4
131,000.00 kJ / mol
2
Level Energy 19
134,700.00 kJ / mol
5
140,500.00 kJ / mol
3
Level Energy 20
144,300.00 kJ / mol
7
152,600.00 kJ / mol
5
Level Energy 21
157,700.00 kJ / mol
7
163,000.00 kJ / mol
5
Level Energy 22
166,090.00 kJ / mol
6
173,600.00 kJ / mol
4
Level Energy 23rd
ora Sumadhiya
188,100.00 kJ / mol
4
Level Energy 24
ora Sumadhiya
195,200.00 kJ / mol
1
padha karo elektrokimia
0.32 g / amp-day
99+
0.69 g / amp-day
99+
Fungsi Work elektron
4.50 eV
14
4.70 eV
10
Properties Kimia liyane
anti Corrosion, Kimia Stabilitas, ionisasi, Isotop radioaktif, kelarutan
Corrosion, ionisasi, kelarutan
atom Properties
Panggil atom
24
99+
26
99+
Konfigurasi elektron
[Ar] 3d 5 4s 1
[Ar] 3d 6 4s 2
Struktur Crystal
Body tengah kubik (Bcc)
Body tengah kubik (Bcc)
Crystal pola
BCC-Crystal-Structure-.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
24
99+
26
99+
Jumlah Neutron
28
99+
30
99+
Jumlah Èlèktron
24
99+
26
99+
Radius saka Atom
Radius atom
128.00 pm
99+
126.00 pm
99+
kovalen Radius
139.00 pm
99+
132.00 pm
99+
Van der Waals Radius
200.00 pm
28
200.00 pm
28
Bobot atom
52.00 Amu
99+
55.85 Amu
99+
Volume atom
7.23 cm3 / mol
99+
7.10 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
170.00 (-eV)
4
67.00 (-eV)
20
Constant pola
291.00 pm
99+
286.65 pm
99+
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
7.19 g / cm 3
99+
7.87 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
6.30 g / cm3
40
6.98 g / cm3
35
Strength tensile
689.00 MPa
7
11,000.00 MPa
1
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa)
24
0.00 (Pa)
28
Meksa beluk ing 2000 K
774.00 (Pa)
1
36.80 (Pa)
5
situs kelenturan
nyukur pengaturan
115.00 GPA
9
82.00 GPA
11
pengaturan akeh
160.00 GPA
11
170.00 GPA
10
Young kang pengaturan
279.00 GPA
8
211.00 GPA
9
Poisson rasio
0.21
32
0.29
15
Properties Teknik liyane
NA
ductile, malleable, Weldable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
7.19
99+
7.20
99+
Nindakake Magnetic
Antiferromagnetic
Ferromagnetic
permeabilitas
ora Sumadhiya
6.3 * 10-3 H / m
1
kelemahan
ora Sumadhiya
2,00,000.00
1
Properties Listrik
Property Listrik
NA
Arman
resistivity
125.00 nΩ · m
27
96.10 nΩ · m
32
konduktivitas listrik
0.08 10 6 / cm Ω
25
0.10 10 6 / cm Ω
20
elektron Affinity
64.30 kJ / mol
15
15.70 kJ / mol
34
termal Properties
Kalor tartamtu
0.45 J / (kg K)
12
0.44 J / (kg K)
13
Graham Kapasitas kalor
23.35 J / mol · K
99+
25.10 J / mol · K
99+
doyo termal
93.90 W / m · K
17
80.40 W / m · K
22
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
4.90 μm / (m · K)
99+
11.80 μm / (m · K)
33
enthalpy
Enthalpy panguapan
348.80 kJ / mol
24
351.00 kJ / mol
23
Enthalpy saka Fusion
15.31 kJ / mol
20
14.90 kJ / mol
22
Enthalpy saka atomization
397.50 kJ / mol
21
414.20 kJ / mol
19
Standard molar Entropy
23.80 J / mol.K
99+
27.30 J / mol.K
99+
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