Symbol
Cr
Pu
Panggil Group
60
0
17
👆🏻
Panggil periode
47
2
7
👆🏻
Block
d block
pemblokiran f
Family unsur
transisi Metal
actinide
CAS Number
74404737440075
7429905
54386242
👆🏻
Jeneng papan Group
3M Im_
P121 / m1
Space Group Number
229.0011.00
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.
- Plutonium metal yen oleh ores saka logam uranium.
- Plutonium metal banget sensitif kanggo owah-owahan ing kondisi atmosfer kaya suhu lan tekanan.
sumber
Found in Minerals, Mining, Ores logam, Ores saka Minerals
Mining, Ores logam
History
sing katutup
Louis Nicolas Vauquelin
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan
Discovery
Ing Antarane 1797 - 1798
Ing Antarane 1940 1941
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
0.30 %-
0
22
👆🏻
Turah mbrawah Ing bumi lemah ndhuwur
0.01 %0.00 %
1E-37
8.1
👆🏻
Turah mbrawah Ing Segara
0.00 %-
0
1.1
👆🏻
Turah mbrawah Ing Manungsa
0.00 %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.
- Plutonium iki digunakake ing bom atom lan isih digunakake ing macem-macem senjata lan industri amunisi.
- Sampeyan uga dipigunakaké ing tanduran daya nuklir minangka sumber energi kanggo papan misi.
Ulah Industrial
Industry automobile, Industri Kimia
Industry Aerospace, Industry amunisi
Ulah Medical
-
-
Ulah liyane
wesi
wesi
Properties biologi
keracunan
Highly Toxic
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 ° C639.50 ° C
-38.83
3410
👆🏻
Boiling Point
2,672.00 ° C3,235.00 ° C
0
5660
👆🏻
katon
State fisik
Solid
Solid
warna
Silver
perak Putih
luster
metallic
-
atose
Mohs atose
8.504.00
0.2
8.5
👆🏻
Brinell atose
687.00 MPa627.00 MPa
0.14
3490
👆🏻
Vickers atose
1,060.00 MPa617.00 MPa
0
3920
👆🏻
Kacepetan swara
5,940.00 m / s2,260.00 m / s
818
16200
👆🏻
Properties Optical
bias Index
2.971.90
0.155
3.41
👆🏻
reflectivity
70.00 %68.00 %
5
97
👆🏻
allotropes
Ora
Ora
α allotropes
-
-
β allotropes
-
-
γ allotropes
-
-
Formula Kimia
Cr
Pu
isotop
Isotop dikenal
2120
0
38
👆🏻
keelektronegatifan
Pauling Elektronegativitas
1.661.28
0
2.6
👆🏻
Sanderson Elektronegativitas
1.661.28
0.22
2.56
👆🏻
Allred Rochow Elektronegativitas
1.561.22
0.86
1.9
👆🏻
Mulliken-Jaffe Elektronegativitas
1.661.30
0.62
2.48
👆🏻
Allen Elektronegativitas
1.651.28
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
2.342.72
1.46
3.3
👆🏻
tenogo ionisasi
Level Energy 1st
26,130.00 kJ / mol584.70 kJ / mol
375.7
26130
👆🏻
Level Energy 2
28,750.00 kJ / mol1,128.00 kJ / mol
392.8
28750
👆🏻
Level Energy 3rd
34,230.00 kJ / mol2,084.00 kJ / mol
392.8
34230
👆🏻
Level Energy 4
37,066.00 kJ / mol3,338.00 kJ / mol
375.7
37066
👆🏻
Level Energy 5th
97,510.00 kJ / mol5,847.00 kJ / mol
392
97510
👆🏻
Level Energy 6th
105,800.00 kJ / mol5,847.00 kJ / mol
1007
105800
👆🏻
tingkat Energy 7
114,300.00 kJ / mol5,840.00 kJ / mol
1007
114300
👆🏻
Level Energy 8
125,300.00 kJ / mol5,840.00 kJ / mol
730
125300
👆🏻
Level Energy 9
134,700.00 kJ / mol5,840.00 kJ / mol
1007
134700
👆🏻
Level Energy 10th
144,300.00 kJ / mol5,840.00 kJ / mol
392
144300
👆🏻
Level Energy 11
26,130.00 kJ / mol5,840.00 kJ / mol
392
169988
👆🏻
Level Energy 12
28,750.00 kJ / mol58,400.00 kJ / mol
0
189368
👆🏻
Level Energy 13
34,230.00 kJ / mol5,840.00 kJ / mol
1007
76015
👆🏻
Level Energy 14
37,066.00 kJ / mol5,840.00 kJ / mol
380
86450
👆🏻
Level Energy 15
97,510.00 kJ / mol58,400.00 kJ / mol
33000
100700
👆🏻
Level Energy 16
105,800.00 kJ / mol58,400.00 kJ / mol
375.7
109480
👆🏻
Level Energy 17
114,300.00 kJ / mol584.70 kJ / mol
375.7
122200
👆🏻
Level Energy 18
125,300.00 kJ / mol5,840.00 kJ / mol
0
134810
👆🏻
Level Energy 19
134,700.00 kJ / mol584.70 kJ / mol
375.7
148700
👆🏻
Level Energy 20
144,300.00 kJ / mol584.00 kJ / mol
0
171200
👆🏻
Level Energy 21
157,700.00 kJ / mol584.70 kJ / mol
375.7
179100
👆🏻
Level Energy 22
166,090.00 kJ / mol584.00 kJ / mol
330
184900
👆🏻
Level Energy 23rd
653.80 kJ / mol584.70 kJ / mol
357.6
198800
👆🏻
Level Energy 24
653.80 kJ / mol584.70 kJ / mol
297.3
195200
👆🏻
Level Energy 25th
653.80 kJ / mol584.70 kJ / mol
0
121900
👆🏻
Level Energy 26th
653.80 kJ / mol584.70 kJ / mol
357.6
127700
👆🏻
Level Energy 27th
652.90 kJ / mol584.70 kJ / mol
0
133800
👆🏻
Level Energy 28th
653.80 kJ / mol584.70 kJ / mol
297.3
139800
👆🏻
Level Energy 29
653.80 kJ / mol584.70 kJ / mol
0
148100
👆🏻
Level Energy 30
653.80 kJ / mol584.00 kJ / mol
0
154500
👆🏻
padha karo elektrokimia
0.32 g / amp-day2.28 g / amp-day
0.16812
8.3209
👆🏻
Fungsi Work elektron
4.50 eV3.88 eV
2.14
6
👆🏻
Properties Kimia liyane
anti Corrosion, Kimia Stabilitas, ionisasi, Isotop radioaktif, kelarutan
Corrosion, ionisasi, Isotop radioaktif, Radioaktif
Panggil atom
2494
3
117
👆🏻
Konfigurasi elektron
[Ar] 3d 5 4s 1
[Rn] 5F 6 7s 2
Struktur Crystal
Body tengah kubik (Bcc)
Pénguapan (Mon)
Crystal pola
atom
Jumlah proton
2494
3
117
👆🏻
Jumlah Neutron
28150
4
285
👆🏻
Jumlah Èlèktron
2494
3
117
👆🏻
Radius saka Atom
Radius atom
128.00 pm159.00 pm
0
348
👆🏻
kovalen Radius
139.00 pm187.00 pm
0
260
👆🏻
Van der Waals Radius
200.00 pm200.00 pm
0
348
👆🏻
Bobot atom
52.00 Amu244.00 Amu
6.94
294
👆🏻
Volume atom
7.23 cm3 / mol12.32 cm3 / mol
1.39
71.07
👆🏻
Nomer atom jejer
unsur Previous
Sabanjure unsur
Potensi Valence Electron
170.00 (-eV)64.90 (-eV)
0
392.42
👆🏻
Constant pola
291.00 pm618.30 pm
0
891.25
👆🏻
pola Angles
π/2, π/2, π/2
-
Pola C / A rasio
1.861.74
0.423
1.9
👆🏻
Kapadhetan
Kapadhetan Ing suhu kamar
7.19 g / cm 319.82 g / cm 3
0.534
40.7
👆🏻
Kapadhetan Nalika Liquid (ing mp)
6.30 g / cm316.63 g / cm3
0.512
41
👆🏻
Strength tensile
689.00 MPa40.00 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)2.20 (Pa)
0
774
👆🏻
situs kelenturan
nyukur pengaturan
115.00 GPA43.00 GPA
1.3
222
👆🏻
pengaturan akeh
160.00 GPA100.00 GPA
0
462
👆🏻
Young kang pengaturan
279.00 GPA96.00 GPA
0
528
👆🏻
Poisson rasio
0.210.21
0.032
0.47
👆🏻
Properties Teknik liyane
-
ductile, malleable
Ciri Magnetic
Gravitasi tartamtu
7.1919.84
0.53
4500
👆🏻
Nindakake Magnetic
Antiferromagnetic
paramagnetic
permeabilitas
0.00 H / m0.00 H / m
1.25643E-06
0.0063
👆🏻
kelemahan
0.000.00
-0.000166
200000
👆🏻
Properties Listrik
Property Listrik
-
Arman miskin
resistivity
125.00 nΩ · m1.46 nΩ · m
0.1
961
👆🏻
konduktivitas listrik
0.08 10 6 / cm Ω0.01 10 6 / cm Ω
0
0.63
👆🏻
elektron Affinity
64.30 kJ / mol0.60 kJ / mol
0
222.8
👆🏻
Kalor tartamtu
0.45 J / (kg K)0.13 J / (kg K)
0.1
3.6
👆🏻
Graham Kapasitas kalor
23.35 J / mol · K35.50 J / mol · K
13.1
62.7
👆🏻
doyo termal
93.90 W / m · K6.74 W / m · K
0
429
👆🏻
suhu kritis
1,907.00 K913.00 K
26.3
3695
👆🏻
Expansion termal
4.90 μm / (m · K)46.70 μm / (m · K)
4.5
97
👆🏻
enthalpy
Enthalpy panguapan
348.80 kJ / mol344.00 kJ / mol
7.32
799.1
👆🏻
Enthalpy saka Fusion
15.31 kJ / mol2.82 kJ / mol
2.1
35.23
👆🏻
Enthalpy saka atomization
397.50 kJ / mol360.00 kJ / mol
61.5
837
👆🏻
Standard molar Entropy
23.80 J / mol.K37.10 J / mol.K
9.5
198.1
👆🏻