Symbol
Ca
Cr
Panggil Group
26
0
17
👆🏻
Panggil periode
44
2
7
👆🏻
Block
s pemblokiran
d block
Family unsur
alkalin bumi
transisi Metal
CAS Number
74407027440473
7429905
54386242
👆🏻
Jeneng papan Group
Fm_ 3M
3M Im_
Space Group Number
225.00229.00
11
276
👆🏻
Facts Interesting
- Calcium rangking Alexa 5th ing dhaftar turah mbrawah bumi persentasi.
- Iki urip ing negara senyawa.
- Gypsum utawa calcium sulfat digunakake minangka plester lan plester saka paris.
- 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
bumi lemah ndhuwur, Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores logam, Ores saka Minerals
History
sing katutup
Humphry Davy
Louis Nicolas Vauquelin
Discovery
ing taun 1808
Ing Antarane 1797 - 1798
turah mbrawah
Turah mbrawah Ing Universe
0.01 %0.00 %
0
0.11
👆🏻
Turah mbrawah Ing Sun
0.01 %0.00 %
0
0.1
👆🏻
Turah mbrawah Ing meteorit
1.10 %0.30 %
0
22
👆🏻
Turah mbrawah Ing bumi lemah ndhuwur
5.00 %0.01 %
1E-37
8.1
👆🏻
Turah mbrawah Ing Segara
0.00 %0.00 %
0
1.1
👆🏻
Turah mbrawah Ing Manungsa
1.40 %0.00 %
0
1.4
👆🏻
Ulah lan Wuku
- Iki digunakake minangka agen ngurangi nalika nyiapake logam kaya thorium lan uranium. Uga digunakake minangka agen paduan kanggo logam kayata aluminium, tembaga lan timbal.
- Kalsium karbonat utawa watu gamping digunakake ing semen.
- 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
Industri Kimia
Industry automobile, Industri Kimia
Ulah Medical
Dentistry, Industry Pharmaceutical
-
Ulah liyane
wesi
wesi
Properties biologi
keracunan
non Toxic
Highly Toxic
Saiki ing badan Human
Ya
Ya
Sang
60.50 Sang / mg dm-30.11 Sang / mg dm-3
0
1970
👆🏻
ing Bone
170,000.00 ppm0.33 ppm
0
170000
👆🏻
leleh Point
839.00 ° C1,857.00 ° C
-38.83
3410
👆🏻
Boiling Point
1,484.00 ° C2,672.00 ° C
0
5660
👆🏻
katon
State fisik
Solid
Solid
warna
Gray
Silver
luster
-
metallic
atose
Mohs atose
1.758.50
0.2
8.5
👆🏻
Brinell atose
170.00 MPa687.00 MPa
0.14
3490
👆🏻
Vickers atose
170.00 MPa1,060.00 MPa
0
3920
👆🏻
Kacepetan swara
3,810.00 m / s5,940.00 m / s
818
16200
👆🏻
Properties Optical
bias Index
1.542.97
0.155
3.41
👆🏻
reflectivity
60.00 %70.00 %
5
97
👆🏻
allotropes
Ora
Ora
α allotropes
-
-
β allotropes
-
-
γ allotropes
-
-
Formula Kimia
Ca
Cr
isotop
Isotop dikenal
1921
0
38
👆🏻
keelektronegatifan
Pauling Elektronegativitas
1.001.66
0
2.6
👆🏻
Sanderson Elektronegativitas
0.951.66
0.22
2.56
👆🏻
Allred Rochow Elektronegativitas
1.041.56
0.86
1.9
👆🏻
Mulliken-Jaffe Elektronegativitas
1.081.66
0.62
2.48
👆🏻
Allen Elektronegativitas
1.031.65
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
3.002.34
1.46
3.3
👆🏻
tenogo ionisasi
Level Energy 1st
589.80 kJ / mol26,130.00 kJ / mol
375.7
26130
👆🏻
Level Energy 2
1,145.40 kJ / mol28,750.00 kJ / mol
392.8
28750
👆🏻
Level Energy 3rd
4,912.40 kJ / mol34,230.00 kJ / mol
392.8
34230
👆🏻
Level Energy 4
6,491.00 kJ / mol37,066.00 kJ / mol
375.7
37066
👆🏻
Level Energy 5th
8,153.00 kJ / mol97,510.00 kJ / mol
392
97510
👆🏻
Level Energy 6th
10,496.00 kJ / mol105,800.00 kJ / mol
1007
105800
👆🏻
tingkat Energy 7
12,270.00 kJ / mol114,300.00 kJ / mol
1007
114300
👆🏻
Level Energy 8
14,206.00 kJ / mol125,300.00 kJ / mol
730
125300
👆🏻
Level Energy 9
18,191.00 kJ / mol134,700.00 kJ / mol
1007
134700
👆🏻
Level Energy 10th
20,385.00 kJ / mol144,300.00 kJ / mol
392
144300
👆🏻
Level Energy 11
57,110.00 kJ / mol26,130.00 kJ / mol
392
169988
👆🏻
Level Energy 12
63,410.00 kJ / mol28,750.00 kJ / mol
0
189368
👆🏻
Level Energy 13
70,110.00 kJ / mol34,230.00 kJ / mol
1007
76015
👆🏻
Level Energy 14
78,890.00 kJ / mol37,066.00 kJ / mol
380
86450
👆🏻
Level Energy 15
86,310.00 kJ / mol97,510.00 kJ / mol
33000
100700
👆🏻
Level Energy 16
94,000.00 kJ / mol105,800.00 kJ / mol
375.7
109480
👆🏻
Level Energy 17
104,900.00 kJ / mol114,300.00 kJ / mol
375.7
122200
👆🏻
Level Energy 18
111,711.00 kJ / mol125,300.00 kJ / mol
0
134810
👆🏻
Level Energy 19
590.60 kJ / mol134,700.00 kJ / mol
375.7
148700
👆🏻
Level Energy 20
590.00 kJ / mol144,300.00 kJ / mol
0
171200
👆🏻
Level Energy 21
590.60 kJ / mol157,700.00 kJ / mol
375.7
179100
👆🏻
Level Energy 22
590.00 kJ / mol166,090.00 kJ / mol
330
184900
👆🏻
Level Energy 23rd
590.60 kJ / mol653.80 kJ / mol
357.6
198800
👆🏻
Level Energy 24
590.60 kJ / mol653.80 kJ / mol
297.3
195200
👆🏻
Level Energy 25th
590.00 kJ / mol653.80 kJ / mol
0
121900
👆🏻
Level Energy 26th
590.60 kJ / mol653.80 kJ / mol
357.6
127700
👆🏻
Level Energy 27th
590.60 kJ / mol652.90 kJ / mol
0
133800
👆🏻
Level Energy 28th
590.60 kJ / mol653.80 kJ / mol
297.3
139800
👆🏻
Level Energy 29
590.60 kJ / mol653.80 kJ / mol
0
148100
👆🏻
Level Energy 30
590.00 kJ / mol653.80 kJ / mol
0
154500
👆🏻
padha karo elektrokimia
0.75 g / amp-day0.32 g / amp-day
0.16812
8.3209
👆🏻
Fungsi Work elektron
2.87 eV4.50 eV
2.14
6
👆🏻
Properties Kimia liyane
Kimia Stabilitas, Flammability, ionisasi, kelarutan
anti Corrosion, Kimia Stabilitas, ionisasi, Isotop radioaktif, kelarutan
Panggil atom
2024
3
117
👆🏻
Konfigurasi elektron
[Ar] 4s 2
[Ar] 3d 5 4s 1
Struktur Crystal
Face tengah kubik (FCC)
Body tengah kubik (Bcc)
Crystal pola
atom
Jumlah proton
2024
3
117
👆🏻
Jumlah Neutron
2028
4
285
👆🏻
Jumlah Èlèktron
2024
3
117
👆🏻
Radius saka Atom
Radius atom
197.00 pm128.00 pm
0
348
👆🏻
kovalen Radius
176.00 pm139.00 pm
0
260
👆🏻
Van der Waals Radius
231.00 pm200.00 pm
0
348
👆🏻
Bobot atom
40.08 Amu52.00 Amu
6.94
294
👆🏻
Volume atom
29.90 cm3 / mol7.23 cm3 / mol
1.39
71.07
👆🏻
Nomer atom jejer
unsur Previous
Sabanjure unsur
Potensi Valence Electron
29.00 (-eV)170.00 (-eV)
0
392.42
👆🏻
Constant pola
558.84 pm291.00 pm
0
891.25
👆🏻
pola Angles
π/2, π/2, π/2
π/2, π/2, π/2
Pola C / A rasio
1.551.86
0.423
1.9
👆🏻
Kapadhetan
Kapadhetan Ing suhu kamar
1.55 g / cm 37.19 g / cm 3
0.534
40.7
👆🏻
Kapadhetan Nalika Liquid (ing mp)
1.38 g / cm36.30 g / cm3
0.512
41
👆🏻
Strength tensile
20.00 MPa689.00 MPa
0.1
11000
👆🏻
viskositas
0.000.00
1.5E-05
0.0035
👆🏻
meksa beluk
Meksa beluk ing 1000 K
25.50 (Pa)0.00 (Pa)
0
121
👆🏻
Meksa beluk ing 2000 K
0.00 (Pa)774.00 (Pa)
0
774
👆🏻
situs kelenturan
nyukur pengaturan
7.40 GPA115.00 GPA
1.3
222
👆🏻
pengaturan akeh
17.00 GPA160.00 GPA
0
462
👆🏻
Young kang pengaturan
20.00 GPA279.00 GPA
0
528
👆🏻
Poisson rasio
0.310.21
0.032
0.47
👆🏻
Properties Teknik liyane
-
-
Ciri Magnetic
Gravitasi tartamtu
4.587.19
0.53
4500
👆🏻
Nindakake Magnetic
diamagnetic
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
Arman
-
resistivity
33.60 nΩ · m125.00 nΩ · m
0.1
961
👆🏻
konduktivitas listrik
0.30 10 6 / cm Ω0.08 10 6 / cm Ω
0
0.63
👆🏻
elektron Affinity
2.37 kJ / mol64.30 kJ / mol
0
222.8
👆🏻
Kalor tartamtu
0.63 J / (kg K)0.45 J / (kg K)
0.1
3.6
👆🏻
Graham Kapasitas kalor
25.93 J / mol · K23.35 J / mol · K
13.1
62.7
👆🏻
doyo termal
201.00 W / m · K93.90 W / m · K
0
429
👆🏻
suhu kritis
1,115.00 K1,907.00 K
26.3
3695
👆🏻
Expansion termal
22.30 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
8.54 kJ / mol15.31 kJ / mol
2.1
35.23
👆🏻
Enthalpy saka atomization
184.00 kJ / mol397.50 kJ / mol
61.5
837
👆🏻
Standard molar Entropy
41.60 J / mol.K23.80 J / mol.K
9.5
198.1
👆🏻