1 Tabel périodik
1.1 Symbol
1.2 Panggil Group
1.3 Panggil periode
1.4 Block
1.5 Family unsur
alkalin bumi
transisi Metal
1.6 CAS Number
74401447440473
7429905
54386242
1.7 Jeneng papan Group
1.8 Space Group Number
2 facts
2.1 Facts Interesting
- metal Radium punika logam abot saka Alkaline logam bumi asli.
- Radium logam punika Highly radioaktif lan ora duwe tengen mangiwa.
- 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
Mining, Ores logam
Found in Minerals, Mining, Ores logam, Ores saka Minerals
2.3 History
2.3.1 sing katutup
Not Available
Louis Nicolas Vauquelin
2.3.2 Discovery
ing taun 1898
Ing Antarane 1797 - 1798
2.4 turah mbrawah
2.4.1 Turah mbrawah Ing Universe
ora Sumadhiya1.5 * 10-3 %
5E-09
0.11
2.4.2 Turah mbrawah Ing Sun
~-9999 %~0.002 %
1E-08
0.1
2.4.3 Turah mbrawah Ing meteorit
ora Sumadhiya0.30 %
1.7E-07
22
2.4.4 Turah mbrawah Ing bumi lemah ndhuwur
2.4.5 Turah mbrawah Ing Segara
2.4.6 Turah mbrawah Ing Manungsa
3 ulah
3.1 Ulah lan Wuku
- Punika logam Highly radioaktif; lan arang-arang Radium-223 digunakake kanggo nambani kanker prostat.
- Kang digunakake ing cat cetha.
Character length exceed error
3.1.1 Ulah Industrial
NA
Industry automobile, Industri Kimia
3.1.2 Ulah Medical
Industry Pharmaceutical
NA
3.1.3 Ulah liyane
3.2 Properties biologi
3.2.1 keracunan
Highly Toxic
Highly Toxic
3.2.2 Saiki ing badan Human
3.2.3 Sang
ora Sumadhiya0.11 Sang / mg dm-3
0
1970
3.2.4 ing Bone
ora Sumadhiya0.33 ppm
0
170000
4 fisik
4.1 leleh Point
700.00 ° C1,857.00 ° C
27
3410
4.2 Boiling Point
1,737.00 ° C2,672.00 ° C
147
5660
4.3 katon
4.3.1 State fisik
4.3.2 warna
4.3.3 luster
4.4 atose
4.4.1 Mohs atose
ora Sumadhiya8.50
0.2
8.5
4.4.2 Brinell atose
ora Sumadhiya687.00 MPa
0.14
3490
4.4.3 Vickers atose
ora Sumadhiya1,060.00 MPa
121
3430
4.5 Kacepetan swara
ora Sumadhiya5,940.00 m / s
818
16200
4.6 Properties Optical
4.6.1 bias Index
ora Sumadhiyaora Sumadhiya
1.000933
1.7229
4.6.2 reflectivity
ora Sumadhiyaora Sumadhiya
58
97
4.7 allotropes
4.7.1 α allotropes
ora Sumadhiya
ora Sumadhiya
4.7.2 β allotropes
ora Sumadhiya
ora Sumadhiya
4.7.3 γ allotropes
ora Sumadhiya
ora Sumadhiya
5 Kimia
5.1 Formula Kimia
5.2 isotop
5.2.1 Isotop dikenal
5.3 keelektronegatifan
5.3.1 Pauling Elektronegativitas
5.3.2 Sanderson Elektronegativitas
ora Sumadhiya1.66
0.22
2.56
5.3.3 Allred Rochow Elektronegativitas
5.3.4 Mulliken-Jaffe Elektronegativitas
0.92ora Sumadhiya
0.62
2.48
5.3.5 Allen Elektronegativitas
5.4 Electropositivity
5.4.1 Pauling Electropositivity
5.5 tenogo ionisasi
5.5.1 Level Energy 1st
509.30 kJ / mol26,130.00 kJ / mol
375.7
26130
5.5.2 Level Energy 2
979.00 kJ / mol28,750.00 kJ / mol
710.2162
28750
5.5.3 Level Energy 3rd
ora Sumadhiya34,230.00 kJ / mol
1600
34230
5.5.4 Level Energy 4
ora Sumadhiya37,066.00 kJ / mol
2780
37066
5.5.5 Level Energy 5th
ora Sumadhiya97,510.00 kJ / mol
4305.2
97510
5.5.6 Level Energy 6th
ora Sumadhiya105,800.00 kJ / mol
5715.8
105800
5.5.7 tingkat Energy 7
ora Sumadhiya114,300.00 kJ / mol
7226.8
114300
5.5.8 Level Energy 8
ora Sumadhiya125,300.00 kJ / mol
8857.4
125300
5.5.9 Level Energy 9
ora Sumadhiya134,700.00 kJ / mol
14110
134700
5.5.10 Level Energy 10th
ora Sumadhiya144,300.00 kJ / mol
17100
144300
5.5.11 Level Energy 11
ora Sumadhiya26,130.00 kJ / mol
19900
169988
5.5.12 Level Energy 12
ora Sumadhiya28,750.00 kJ / mol
22219
189368
5.5.13 Level Energy 13
ora Sumadhiya34,230.00 kJ / mol
26930
76015
5.5.14 Level Energy 14
ora Sumadhiya37,066.00 kJ / mol
29196
86450
5.5.15 Level Energy 15
ora Sumadhiya97,510.00 kJ / mol
41987
97510
5.5.16 Level Energy 16
ora Sumadhiya105,800.00 kJ / mol
47206
109480
5.5.17 Level Energy 17
ora Sumadhiya114,300.00 kJ / mol
52737
122200
5.5.18 Level Energy 18
ora Sumadhiya125,300.00 kJ / mol
58570
134810
5.5.19 Level Energy 19
ora Sumadhiya134,700.00 kJ / mol
64702
148700
5.5.20 Level Energy 20
ora Sumadhiya144,300.00 kJ / mol
80400
171200
5.5.21 Level Energy 21
ora Sumadhiya157,700.00 kJ / mol
87000
179100
5.5.22 Level Energy 22
ora Sumadhiya166,090.00 kJ / mol
93400
184900
5.5.23 Level Energy 23rd
ora Sumadhiyaora Sumadhiya
98420
198800
5.5.24 Level Energy 24
ora Sumadhiyaora Sumadhiya
104400
195200
5.5.25 Level Energy 25th
ora Sumadhiyaora Sumadhiya
121900
121900
5.5.26 Level Energy 26th
ora Sumadhiyaora Sumadhiya
127700
127700
5.5.27 Level Energy 27th
ora Sumadhiyaora Sumadhiya
133800
133800
5.5.28 Level Energy 28th
ora Sumadhiyaora Sumadhiya
139800
139800
5.5.29 Level Energy 29
ora Sumadhiyaora Sumadhiya
148100
148100
5.5.30 Level Energy 30
ora Sumadhiyaora Sumadhiya
154500
154500
5.6 padha karo elektrokimia
4.22 g / amp-day0.32 g / amp-day
0.16812
8.3209
5.7 Fungsi Work elektron
ora Sumadhiya4.50 eV
2.14
5.65
5.8 Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
anti Corrosion, Kimia Stabilitas, ionisasi, Isotop radioaktif, kelarutan
6 atom
6.1 Panggil atom
6.2 Konfigurasi elektron
6.3 Struktur Crystal
Body tengah kubik (Bcc)
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
ora Sumadhiya128.00 pm
112
265
6.5.2 kovalen Radius
221.00 pm139.00 pm
96
260
6.5.3 Van der Waals Radius
283.00 pm200.00 pm
139
348
6.6 Bobot atom
226.00 Amu52.00 Amu
6.94
294
6.7 Volume atom
45.20 cm3 / mol7.23 cm3 / mol
1.39
71.07
6.8 Nomer atom jejer
6.8.1 unsur Previous
6.8.2 Sabanjure unsur
6.9 Potensi Valence Electron
20.10 (-eV)170.00 (-eV)
8
392.42
6.10 Constant pola
514.80 pm291.00 pm
228.58
891.25
6.11 pola Angles
π/2, π/2, π/2
π/2, π/2, π/2
6.12 Pola C / A rasio
ora Sumadhiyaora Sumadhiya
1.567
1.886
7 Teknik
7.1 Kapadhetan
7.1.1 Kapadhetan Ing suhu kamar
5.50 g / cm 37.19 g / cm 3
0.534
40.7
7.1.2 Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya6.30 g / cm3
0.512
20
7.2 Strength tensile
ora Sumadhiya689.00 MPa
2.5
11000
7.3 viskositas
ora Sumadhiyaora Sumadhiya
0.001526
0.001526
7.4 meksa beluk
7.4.1 Meksa beluk ing 1000 K
ora Sumadhiya0.00 (Pa)
2.47E-11
121
7.4.2 Meksa beluk ing 2000 K
ora Sumadhiya774.00 (Pa)
2.62E-10
774
7.5 situs kelenturan
7.5.1 nyukur pengaturan
ora Sumadhiya115.00 GPA
1.3
222
7.5.2 pengaturan akeh
ora Sumadhiya160.00 GPA
1.6
462
7.5.3 Young kang pengaturan
ora Sumadhiya279.00 GPA
1.7
528
7.6 Poisson rasio
ora Sumadhiya0.21
0.032
0.47
7.7 Properties Teknik liyane
8 Magnetic
8.1 Ciri Magnetic
8.1.1 Gravitasi tartamtu
8.1.2 Nindakake Magnetic
nonmagnetic
Antiferromagnetic
8.1.3 permeabilitas
ora Sumadhiyaora Sumadhiya
1.25643E-06
0.0063
8.1.4 kelemahan
ora Sumadhiyaora Sumadhiya
-0.000166
200000
8.2 Properties Listrik
8.2.1 Property Listrik
8.2.2 resistivity
100.00 nΩ · m125.00 nΩ · m
0.18
961
8.2.3 konduktivitas listrik
ora Sumadhiya0.08 10 6 / cm Ω
0.00666
0.63
8.2.4 elektron Affinity
ora Sumadhiya64.30 kJ / mol
0
222.8
9 termal
9.1 Kalor tartamtu
0.12 J / (kg K)0.45 J / (kg K)
0.11
3.6
9.2 Graham Kapasitas kalor
ora Sumadhiya23.35 J / mol · K
16.443
62.7
9.3 doyo termal
18.60 W / m · K93.90 W / m · K
6.3
429
9.4 suhu kritis
ora Sumadhiyaora Sumadhiya
26.3
3223
9.5 Expansion termal
ora Sumadhiya4.90 μm / (m · K)
4.5
97
9.6 enthalpy
9.6.1 Enthalpy panguapan
ora Sumadhiya348.80 kJ / mol
7.32
799.1
9.6.2 Enthalpy saka Fusion
ora Sumadhiya15.31 kJ / mol
2.1
35.23
9.6.3 Enthalpy saka atomization
163.00 kJ / mol397.50 kJ / mol
61.5
837
9.7 Standard molar Entropy
71.00 J / mol.K23.80 J / mol.K
9.5
198.1