mbandhingaké calcium lan krom
Tabel périodik
Symbol
Ca
Cr
Panggil Group
2
16
6
12
Panggil periode
4
4
Block
s pemblokiran
d block
Family unsur
alkalin bumi
transisi Metal
CAS Number
7440702
21
7440473
39
Jeneng papan Group
Fm_ 3M
3M Im_
Space Group Number
225.00
2
229.00
1
facts
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
7 * 10-3 %
3
1.5 * 10-3 %
7
Turah mbrawah Ing Sun
~0.007 %
4
~0.002 %
7
Turah mbrawah Ing meteorit
1.10 %
4
0.30 %
7
Turah mbrawah Ing bumi lemah ndhuwur
5.00 %
3
0.01 %
13
Turah mbrawah Ing Segara
0.00 %
5
0.00 %
16
Turah mbrawah Ing Manungsa
1.40 %
1
0.00 %
16
ulah
Ulah lan Wuku
Character length exceed error
Character length exceed error
Ulah Industrial
Industri Kimia
Industry automobile, Industri Kimia
Ulah Medical
Dentistry, Industry Pharmaceutical
NA
Ulah liyane
wesi
wesi
Properties biologi
keracunan
non Toxic
Highly Toxic
Saiki ing badan Human
Ya
Ya
Sang
60.50 Sang / mg dm-3
4
0.11 Sang / mg dm-3
12
ing Bone
170,000.00 ppm
1
0.33 ppm
21
fisik Properties
leleh Point
839.00 ° C
99+
1,857.00 ° C
14
Boiling Point
1,484.00 ° C
99+
2,672.00 ° C
39
katon
State fisik
Solid
Solid
warna
Gray
Silver
luster
NA
metallic
atose
Mohs atose
1.75
17
8.50
1
Brinell atose
170.00 MPa
99+
687.00 MPa
16
Vickers atose
ora Sumadhiya
1,060.00 MPa
10
Kacepetan swara
3,810.00 m / s
19
5,940.00 m / s
5
Properties Optical
allotropes
Ora
Ora
α allotropes
ora Sumadhiya
ora Sumadhiya
β allotropes
ora Sumadhiya
ora Sumadhiya
γ allotropes
ora Sumadhiya
ora Sumadhiya
Kimia Properties
Formula Kimia
Ca
Cr
isotop
Isotop dikenal
19
20
21
18
keelektronegatifan
Pauling Elektronegativitas
1.00
99+
1.66
18
Sanderson Elektronegativitas
0.95
24
1.66
14
Allred Rochow Elektronegativitas
1.04
34
1.56
10
Mulliken-Jaffe Elektronegativitas
1.08
17
ora Sumadhiya
Allen Elektronegativitas
1.03
39
1.65
19
Electropositivity
Pauling Electropositivity
3.00
9
2.34
36
tenogo ionisasi
Level Energy 1st
589.80 kJ / mol
99+
26,130.00 kJ / mol
1
Level Energy 2
1,145.40 kJ / mol
99+
28,750.00 kJ / mol
1
Level Energy 3rd
4,912.40 kJ / mol
7
34,230.00 kJ / mol
1
Level Energy 4
6,491.00 kJ / mol
7
37,066.00 kJ / mol
1
Level Energy 5th
8,153.00 kJ / mol
7
97,510.00 kJ / mol
1
Level Energy 6th
10,496.00 kJ / mol
8
105,800.00 kJ / mol
1
tingkat Energy 7
12,270.00 kJ / mol
12
114,300.00 kJ / mol
1
Level Energy 8
14,206.00 kJ / mol
15
125,300.00 kJ / mol
1
Level Energy 9
18,191.00 kJ / mol
12
134,700.00 kJ / mol
1
Level Energy 10th
20,385.00 kJ / mol
16
144,300.00 kJ / mol
1
Level Energy 11
57,110.00 kJ / mol
3
26,130.00 kJ / mol
12
Level Energy 12
63,410.00 kJ / mol
3
28,750.00 kJ / mol
13
Level Energy 13
70,110.00 kJ / mol
3
34,230.00 kJ / mol
10
Level Energy 14
78,890.00 kJ / mol
4
37,066.00 kJ / mol
12
Level Energy 15
86,310.00 kJ / mol
5
97,510.00 kJ / mol
1
Level Energy 16
94,000.00 kJ / mol
6
105,800.00 kJ / mol
2
Level Energy 17
104,900.00 kJ / mol
7
114,300.00 kJ / mol
3
Level Energy 18
111,711.00 kJ / mol
8
125,300.00 kJ / mol
4
Level Energy 19
ora Sumadhiya
134,700.00 kJ / mol
5
Level Energy 20
ora Sumadhiya
144,300.00 kJ / mol
7
Level Energy 21
ora Sumadhiya
157,700.00 kJ / mol
7
Level Energy 22
ora Sumadhiya
166,090.00 kJ / mol
6
padha karo elektrokimia
0.75 g / amp-day
99+
0.32 g / amp-day
99+
Fungsi Work elektron
2.87 eV
38
4.50 eV
14
Properties Kimia liyane
Kimia Stabilitas, Flammability, ionisasi, kelarutan
anti Corrosion, Kimia Stabilitas, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
20
99+
24
99+
Konfigurasi elektron
[Ar] 4s 2
[Ar] 3d 5 4s 1
Struktur Crystal
Face tengah kubik (FCC)
Body tengah kubik (Bcc)
Crystal pola
FCC-Crystal-Structure-of-Calcium.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
20
99+
24
99+
Jumlah Neutron
20
99+
28
99+
Jumlah Èlèktron
20
99+
24
99+
Radius saka Atom
Radius atom
197.00 pm
6
128.00 pm
99+
kovalen Radius
176.00 pm
22
139.00 pm
99+
Van der Waals Radius
231.00 pm
19
200.00 pm
28
Bobot atom
40.08 Amu
99+
52.00 Amu
99+
Volume atom
29.90 cm3 / mol
7
7.23 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
29.00 (-eV)
99+
170.00 (-eV)
4
Constant pola
558.84 pm
9
291.00 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
1.55 g / cm 3
99+
7.19 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
1.38 g / cm3
99+
6.30 g / cm3
40
Strength tensile
ora Sumadhiya
689.00 MPa
7
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
25.50 (Pa)
3
0.00 (Pa)
24
Meksa beluk ing 2000 K
ora Sumadhiya
774.00 (Pa)
1
situs kelenturan
nyukur pengaturan
7.40 GPA
99+
115.00 GPA
9
pengaturan akeh
17.00 GPA
99+
160.00 GPA
11
Young kang pengaturan
20.00 GPA
99+
279.00 GPA
8
Poisson rasio
0.31
13
0.21
32
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
4.58
99+
7.19
99+
Nindakake Magnetic
diamagnetic
Antiferromagnetic
Properties Listrik
Property Listrik
Arman
NA
resistivity
33.60 nΩ · m
99+
125.00 nΩ · m
27
konduktivitas listrik
0.30 10 6 / cm Ω
6
0.08 10 6 / cm Ω
25
elektron Affinity
2.37 kJ / mol
39
64.30 kJ / mol
15
termal Properties
Kalor tartamtu
0.63 J / (kg K)
7
0.45 J / (kg K)
12
Graham Kapasitas kalor
25.93 J / mol · K
34
23.35 J / mol · K
99+
doyo termal
201.00 W / m · K
5
93.90 W / m · K
17
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
22.30 μm / (m · K)
19
4.90 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
150.00 kJ / mol
99+
348.80 kJ / mol
24
Enthalpy saka Fusion
8.54 kJ / mol
99+
15.31 kJ / mol
20
Enthalpy saka atomization
184.00 kJ / mol
99+
397.50 kJ / mol
21
Standard molar Entropy
41.60 J / mol.K
36
23.80 J / mol.K
99+
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