1 Tabel périodik
1.1 Symbol
Ra
1.2 Panggil Group
1.3 Panggil periode
1.4 Block
s pemblokiran
1.5 Family unsur
alkalin bumi
1.6 CAS Number
7440144
Rank: 65 (Overall) ▶
7429905
54386242
1.7 Jeneng papan Group
3M Im_
1.8 Space Group Number
229.00
Rank: 1 (Overall) ▶
11
229
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.
2.2 sumber
Mining, Ores logam
2.3 History
2.3.1 sing katutup
Not Available
2.3.2 Discovery
ing taun 1898
2.4 turah mbrawah
2.4.1 Turah mbrawah Ing Universe
ora Sumadhiya
Rank: N/A (Overall) ▶
5E-09
0.11
2.4.2 Turah mbrawah Ing Sun
~-9999 %
Rank: N/A (Overall) ▶
1E-08
0.1
2.4.3 Turah mbrawah Ing meteorit
ora Sumadhiya
Rank: N/A (Overall) ▶
1.7E-07
22
2.4.4 Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
Rank: 57 (Overall) ▶
9.9E-12
8.1
2.4.5 Turah mbrawah Ing Segara
0.00 %
Rank: 45 (Overall) ▶
2E-23
1.1
2.4.6 Turah mbrawah Ing Manungsa
0.00 %
Rank: 20 (Overall) ▶
1E-13
1.4
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.
3.1.1 Ulah Industrial
NA
3.1.2 Ulah Medical
Industry Pharmaceutical
3.1.3 Ulah liyane
NA
3.2 Properties biologi
3.2.1 keracunan
Highly Toxic
3.2.2 Saiki ing badan Human
Ora
3.2.3 Sang
ora Sumadhiya
Rank: N/A (Overall) ▶
0
1970
3.2.4 ing Bone
ora Sumadhiya
Rank: N/A (Overall) ▶
0
170000
4 fisik
4.1 leleh Point
700.00 ° C
Rank: 59 (Overall) ▶
27
3410
4.2 Boiling Point
1,737.00 ° C
Rank: 54 (Overall) ▶
147
5660
4.3 katon
4.3.1 State fisik
Solid
4.3.2 warna
perak Putih
4.3.3 luster
metallic
4.4 atose
4.4.1 Mohs atose
ora Sumadhiya
Rank: N/A (Overall) ▶
0.2
8.5
4.4.2 Brinell atose
ora Sumadhiya
Rank: N/A (Overall) ▶
0.14
3490
4.4.3 Vickers atose
ora Sumadhiya
Rank: N/A (Overall) ▶
121
3430
4.5 Kacepetan swara
ora Sumadhiya
Rank: N/A (Overall) ▶
818
16200
4.6 Properties Optical
4.6.1 bias Index
ora Sumadhiya
Rank: N/A (Overall) ▶
1.000933
1.7229
4.6.2 reflectivity
ora Sumadhiya
Rank: N/A (Overall) ▶
58
97
4.7 allotropes
Ora
4.7.1 α allotropes
ora Sumadhiya
4.7.2 β allotropes
ora Sumadhiya
4.7.3 γ allotropes
ora Sumadhiya
5 Kimia
5.1 Formula Kimia
Ra
5.2 isotop
5.2.1 Isotop dikenal
5.3 keelektronegatifan
5.3.1 Pauling Elektronegativitas
0.90
Rank: 49 (Overall) ▶
0.7
2.54
5.3.2 Sanderson Elektronegativitas
ora Sumadhiya
Rank: N/A (Overall) ▶
0.22
2.56
5.3.3 Allred Rochow Elektronegativitas
0.97
Rank: 38 (Overall) ▶
0.86
1.82
5.3.4 Mulliken-Jaffe Elektronegativitas
0.92
Rank: 20 (Overall) ▶
0.62
2.48
5.3.5 Allen Elektronegativitas
0.89
Rank: 42 (Overall) ▶
0.659
2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
5.5 tenogo ionisasi
5.5.1 Level Energy 1st
509.30 kJ / mol
Rank: 82 (Overall) ▶
375.7
26130
5.5.2 Level Energy 2
979.00 kJ / mol
Rank: 81 (Overall) ▶
710.2162
28750
5.5.3 Level Energy 3rd
ora Sumadhiya
Rank: N/A (Overall) ▶
1600
34230
5.5.4 Level Energy 4
ora Sumadhiya
Rank: N/A (Overall) ▶
2780
37066
5.5.5 Level Energy 5th
ora Sumadhiya
Rank: N/A (Overall) ▶
4305.2
97510
5.5.6 Level Energy 6th
ora Sumadhiya
Rank: N/A (Overall) ▶
5715.8
105800
5.5.7 tingkat Energy 7
ora Sumadhiya
Rank: N/A (Overall) ▶
7226.8
114300
5.5.8 Level Energy 8
ora Sumadhiya
Rank: N/A (Overall) ▶
8857.4
125300
5.5.9 Level Energy 9
ora Sumadhiya
Rank: N/A (Overall) ▶
14110
134700
5.5.10 Level Energy 10th
ora Sumadhiya
Rank: N/A (Overall) ▶
17100
144300
5.5.11 Level Energy 11
ora Sumadhiya
Rank: N/A (Overall) ▶
19900
169988
5.5.12 Level Energy 12
ora Sumadhiya
Rank: N/A (Overall) ▶
22219
189368
5.5.13 Level Energy 13
ora Sumadhiya
Rank: N/A (Overall) ▶
26930
76015
5.5.14 Level Energy 14
ora Sumadhiya
Rank: N/A (Overall) ▶
29196
86450
5.5.15 Level Energy 15
ora Sumadhiya
Rank: N/A (Overall) ▶
41987
97510
5.5.16 Level Energy 16
ora Sumadhiya
Rank: N/A (Overall) ▶
47206
109480
5.5.17 Level Energy 17
ora Sumadhiya
Rank: N/A (Overall) ▶
52737
122200
5.5.18 Level Energy 18
ora Sumadhiya
Rank: N/A (Overall) ▶
58570
134810
5.5.19 Level Energy 19
ora Sumadhiya
Rank: N/A (Overall) ▶
64702
148700
5.5.20 Level Energy 20
ora Sumadhiya
Rank: N/A (Overall) ▶
80400
171200
5.5.21 Level Energy 21
ora Sumadhiya
Rank: N/A (Overall) ▶
87000
179100
5.5.22 Level Energy 22
ora Sumadhiya
Rank: N/A (Overall) ▶
93400
184900
5.5.23 Level Energy 23rd
ora Sumadhiya
Rank: N/A (Overall) ▶
98420
198800
5.5.24 Level Energy 24
ora Sumadhiya
Rank: N/A (Overall) ▶
104400
195200
5.5.25 Level Energy 25th
ora Sumadhiya
Rank: N/A (Overall) ▶
121900
121900
5.5.26 Level Energy 26th
ora Sumadhiya
Rank: N/A (Overall) ▶
127700
127700
5.5.27 Level Energy 27th
ora Sumadhiya
Rank: N/A (Overall) ▶
133800
133800
5.5.28 Level Energy 28th
ora Sumadhiya
Rank: N/A (Overall) ▶
139800
139800
5.5.29 Level Energy 29
ora Sumadhiya
Rank: N/A (Overall) ▶
148100
148100
5.5.30 Level Energy 30
ora Sumadhiya
Rank: N/A (Overall) ▶
154500
154500
5.6 padha karo elektrokimia
4.22 g / amp-day
Rank: 6 (Overall) ▶
0.16812
8.3209
5.7 Fungsi Work elektron
ora Sumadhiya
Rank: N/A (Overall) ▶
2.14
5.65
5.8 Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
6 atom
6.1 Panggil atom
6.2 Konfigurasi elektron
[Rn] 7s 2
6.3 Struktur Crystal
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 Sumadhiya
Rank: N/A (Overall) ▶
112
265
6.5.2 kovalen Radius
221.00 pm
Rank: 3 (Overall) ▶
96
260
6.5.3 Van der Waals Radius
283.00 pm
Rank: 4 (Overall) ▶
139
348
6.6 Bobot atom
226.00 Amu
Rank: 26 (Overall) ▶
6.94
294
6.7 Volume atom
45.20 cm3 / mol
Rank: 4 (Overall) ▶
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)
Rank: 59 (Overall) ▶
8
392.42
6.10 Constant pola
514.80 pm
Rank: 13 (Overall) ▶
228.58
891.25
6.11 pola Angles
π/2, π/2, π/2
6.12 Pola C / A rasio
ora Sumadhiya
Rank: N/A (Overall) ▶
1.567
1.886
7 Teknik
7.1 Kapadhetan
7.1.1 Kapadhetan Ing suhu kamar
5.50 g / cm 3
Rank: 68 (Overall) ▶
0.534
40.7
7.1.2 Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya
Rank: N/A (Overall) ▶
0.512
20
7.2 Strength tensile
ora Sumadhiya
Rank: N/A (Overall) ▶
2.5
11000
7.3 viskositas
ora Sumadhiya
Rank: N/A (Overall) ▶
0.001526
0.001526
7.4 meksa beluk
7.4.1 Meksa beluk ing 1000 K
ora Sumadhiya
Rank: N/A (Overall) ▶
2.47E-11
121
7.4.2 Meksa beluk ing 2000 K
ora Sumadhiya
Rank: N/A (Overall) ▶
2.62E-10
774
7.5 situs kelenturan
7.5.1 nyukur pengaturan
ora Sumadhiya
Rank: N/A (Overall) ▶
1.3
222
7.5.2 pengaturan akeh
ora Sumadhiya
Rank: N/A (Overall) ▶
1.6
462
7.5.3 Young kang pengaturan
ora Sumadhiya
Rank: N/A (Overall) ▶
1.7
528
7.6 Poisson rasio
ora Sumadhiya
Rank: N/A (Overall) ▶
0.032
0.47
7.7 Properties Teknik liyane
NA
8 Magnetic
8.1 Ciri Magnetic
8.1.1 Gravitasi tartamtu
5.00
Rank: 56 (Overall) ▶
0.53
4500
8.1.2 Nindakake Magnetic
nonmagnetic
8.1.3 permeabilitas
ora Sumadhiya
Rank: N/A (Overall) ▶
1.25643E-06
0.0063
8.1.4 kelemahan
ora Sumadhiya
Rank: N/A (Overall) ▶
-0.000166
200000
8.2 Properties Listrik
8.2.1 Property Listrik
NA
8.2.2 resistivity
100.00 nΩ · m
Rank: 31 (Overall) ▶
0.18
961
8.2.3 konduktivitas listrik
ora Sumadhiya
Rank: N/A (Overall) ▶
0.00666
0.63
8.2.4 elektron Affinity
ora Sumadhiya
Rank: N/A (Overall) ▶
0
222.8
9 termal
9.1 Kalor tartamtu
0.12 J / (kg K)
Rank: 40 (Overall) ▶
0.11
3.6
9.2 Graham Kapasitas kalor
ora Sumadhiya
Rank: N/A (Overall) ▶
16.443
62.7
9.3 doyo termal
18.60 W / m · K
Rank: 45 (Overall) ▶
6.3
429
9.4 suhu kritis
ora Sumadhiya
Rank: N/A (Overall) ▶
26.3
3223
9.5 Expansion termal
ora Sumadhiya
Rank: N/A (Overall) ▶
4.5
97
9.6 enthalpy
9.6.1 Enthalpy panguapan
ora Sumadhiya
Rank: N/A (Overall) ▶
7.32
799.1
9.6.2 Enthalpy saka Fusion
ora Sumadhiya
Rank: N/A (Overall) ▶
2.1
35.23
9.6.3 Enthalpy saka atomization
163.00 kJ / mol
Rank: 51 (Overall) ▶
61.5
837
9.7 Standard molar Entropy
71.00 J / mol.K
Rank: 14 (Overall) ▶
9.5
198.1