Symbol
Ra
-
Panggil Group
21
0
17
👆🏻
Panggil periode
73
2
7
👆🏻
Block
s pemblokiran
s pemblokiran
Family unsur
alkalin bumi
alkali
CAS Number
74401447440235
7429905
54386242
👆🏻
Jeneng papan Group
3M Im_
3M Im_
Space Group Number
229.00229.00
11
276
👆🏻
Facts Interesting
- metal Radium punika logam abot saka Alkaline logam bumi asli.
- Radium logam punika Highly radioaktif lan ora duwe tengen mangiwa.
- Ing suhu kamar Sodium logam sanget alus kang bisa disigar mudhun menyang bêsik karo piso butter.
- senyawa paling umum saka Sodium iku NaCl (Salt).
sumber
Mining, Ores logam
Miturut Process electrolysis, Mining
History
sing katutup
-
Humphry Davy
Discovery
ing taun 1898
1807
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
-0.55 %
0
22
👆🏻
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %2.30 %
1E-37
8.1
👆🏻
Turah mbrawah Ing Segara
0.00 %1.10 %
0
1.1
👆🏻
Turah mbrawah Ing Manungsa
0.00 %0.14 %
0
1.4
👆🏻
Ulah lan Wuku
- Punika logam Highly radioaktif; lan arang-arang Radium-223 digunakake kanggo nambani kanker prostat.
- Kang digunakake ing cat cetha.
- Ing sawetara reaktor nuklir sodium digunakake minangka exchanger panas.
- Senyawa saka logam Sodium disebut Salt (Sodium klorida) digunakake ing Food.
Ulah Industrial
-
Industry Listrik, Industry Elektronik
Ulah Medical
Industry Pharmaceutical
Industry Pharmaceutical
Ulah liyane
-
wesi
Properties biologi
keracunan
Highly Toxic
Toxic
Saiki ing badan Human
Ora
Ya
Sang
0.00 Sang / mg dm-31,970.00 Sang / mg dm-3
0
1970
👆🏻
ing Bone
0.00 ppm10,000.00 ppm
0
170000
👆🏻
leleh Point
700.00 ° C97.72 ° C
-38.83
3410
👆🏻
Boiling Point
1,737.00 ° C883.00 ° C
0
5660
👆🏻
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
metallic
metallic
atose
Mohs atose
1.000.50
0.2
8.5
👆🏻
Brinell atose
700.00 MPa0.69 MPa
0.14
3490
👆🏻
Vickers atose
140.00 MPa0.69 MPa
0
3920
👆🏻
Kacepetan swara
3,150.00 m / s3,200.00 m / s
818
16200
👆🏻
Properties Optical
bias Index
1.001.33
0.155
3.41
👆🏻
reflectivity
83.00 %53.00 %
5
97
👆🏻
allotropes
Ora
Ora
α allotropes
-
-
β allotropes
-
-
γ allotropes
-
-
Formula Kimia
Ra
-
isotop
Isotop dikenal
3317
0
38
👆🏻
keelektronegatifan
Pauling Elektronegativitas
0.900.93
0
2.6
👆🏻
Sanderson Elektronegativitas
0.890.56
0.22
2.56
👆🏻
Allred Rochow Elektronegativitas
0.971.01
0.86
1.9
👆🏻
Mulliken-Jaffe Elektronegativitas
0.920.91
0.62
2.48
👆🏻
Allen Elektronegativitas
0.890.87
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
3.103.07
1.46
3.3
👆🏻
tenogo ionisasi
Level Energy 1st
509.30 kJ / mol495.80 kJ / mol
375.7
26130
👆🏻
Level Energy 2
979.00 kJ / mol4,562.00 kJ / mol
392.8
28750
👆🏻
Level Energy 3rd
509.30 kJ / mol6,910.30 kJ / mol
392.8
34230
👆🏻
Level Energy 4
5,093.00 kJ / mol9,543.00 kJ / mol
375.7
37066
👆🏻
Level Energy 5th
5,090.00 kJ / mol13,354.00 kJ / mol
392
97510
👆🏻
Level Energy 6th
5,090.00 kJ / mol16,613.00 kJ / mol
1007
105800
👆🏻
tingkat Energy 7
5,090.00 kJ / mol20,117.00 kJ / mol
1007
114300
👆🏻
Level Energy 8
5,090.00 kJ / mol25,496.00 kJ / mol
730
125300
👆🏻
Level Energy 9
5,090.00 kJ / mol28,932.00 kJ / mol
1007
134700
👆🏻
Level Energy 10th
5,090.00 kJ / mol141,362.00 kJ / mol
392
144300
👆🏻
Level Energy 11
5,090.00 kJ / mol159,076.00 kJ / mol
392
169988
👆🏻
Level Energy 12
5,090.00 kJ / mol4,950.00 kJ / mol
0
189368
👆🏻
Level Energy 13
5,090.00 kJ / mol4,950.00 kJ / mol
1007
76015
👆🏻
Level Energy 14
5,090.00 kJ / mol495.80 kJ / mol
380
86450
👆🏻
Level Energy 15
50,900.00 kJ / mol49,500.00 kJ / mol
33000
100700
👆🏻
Level Energy 16
50,900.00 kJ / mol49,500.00 kJ / mol
375.7
109480
👆🏻
Level Energy 17
509.30 kJ / mol495.80 kJ / mol
375.7
122200
👆🏻
Level Energy 18
5,090.00 kJ / mol4,960.00 kJ / mol
0
134810
👆🏻
Level Energy 19
509.30 kJ / mol495.80 kJ / mol
375.7
148700
👆🏻
Level Energy 20
509.00 kJ / mol496.00 kJ / mol
0
171200
👆🏻
Level Energy 21
509.30 kJ / mol495.80 kJ / mol
375.7
179100
👆🏻
Level Energy 22
509.00 kJ / mol495.00 kJ / mol
330
184900
👆🏻
Level Energy 23rd
509.30 kJ / mol495.80 kJ / mol
357.6
198800
👆🏻
Level Energy 24
509.30 kJ / mol495.80 kJ / mol
297.3
195200
👆🏻
Level Energy 25th
509.00 kJ / mol496.00 kJ / mol
0
121900
👆🏻
Level Energy 26th
509.30 kJ / mol495.80 kJ / mol
357.6
127700
👆🏻
Level Energy 27th
509.30 kJ / mol495.80 kJ / mol
0
133800
👆🏻
Level Energy 28th
509.30 kJ / mol495.80 kJ / mol
297.3
139800
👆🏻
Level Energy 29
509.30 kJ / mol495.80 kJ / mol
0
148100
👆🏻
Level Energy 30
509.00 kJ / mol495.80 kJ / mol
0
154500
👆🏻
padha karo elektrokimia
4.22 g / amp-day0.86 g / amp-day
0.16812
8.3209
👆🏻
Fungsi Work elektron
4.30 eV2.75 eV
2.14
6
👆🏻
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
Kimia Stabilitas, Corrosion, Flammability, ionisasi, kelarutan
Panggil atom
8811
3
117
👆🏻
Konfigurasi elektron
[Rn] 7s 2
[Ne] 3s 1
Struktur Crystal
Body tengah kubik (Bcc)
Body tengah kubik (Bcc)
Crystal pola
atom
Jumlah proton
8811
3
117
👆🏻
Jumlah Neutron
13812
4
285
👆🏻
Jumlah Èlèktron
8811
3
117
👆🏻
Radius saka Atom
Radius atom
215.00 pm186.00 pm
0
348
👆🏻
kovalen Radius
221.00 pm166.00 pm
0
260
👆🏻
Van der Waals Radius
283.00 pm227.00 pm
0
348
👆🏻
Bobot atom
226.00 Amu22.99 Amu
6.94
294
👆🏻
Volume atom
45.20 cm3 / mol23.70 cm3 / mol
1.39
71.07
👆🏻
Nomer atom jejer
unsur Previous
Sabanjure unsur
Potensi Valence Electron
20.10 (-eV)14.10 (-eV)
0
392.42
👆🏻
Constant pola
514.80 pm429.06 pm
0
891.25
👆🏻
pola Angles
π/2, π/2, π/2
π/2, π/2, π/2
Pola C / A rasio
1.571.01
0.423
1.9
👆🏻
Kapadhetan
Kapadhetan Ing suhu kamar
5.50 g / cm 30.97 g / cm 3
0.534
40.7
👆🏻
Kapadhetan Nalika Liquid (ing mp)
5.50 g / cm30.93 g / cm3
0.512
41
👆🏻
Strength tensile
40.00 MPa10.00 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
0.00 (Pa)0.00 (Pa)
0
774
👆🏻
situs kelenturan
nyukur pengaturan
25.00 GPA3.30 GPA
1.3
222
👆🏻
pengaturan akeh
43.00 GPA6.30 GPA
0
462
👆🏻
Young kang pengaturan
83.00 GPA10.00 GPA
0
528
👆🏻
Poisson rasio
0.310.37
0.032
0.47
👆🏻
Properties Teknik liyane
-
-
Ciri Magnetic
Gravitasi tartamtu
5.000.97
0.53
4500
👆🏻
Nindakake Magnetic
nonmagnetic
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
resistivity
100.00 nΩ · m47.70 nΩ · m
0.1
961
👆🏻
konduktivitas listrik
0.00 10 6 / cm Ω0.21 10 6 / cm Ω
0
0.63
👆🏻
elektron Affinity
0.90 kJ / mol52.80 kJ / mol
0
222.8
👆🏻
Kalor tartamtu
0.12 J / (kg K)1.23 J / (kg K)
0.1
3.6
👆🏻
Graham Kapasitas kalor
20.05 J / mol · K28.23 J / mol · K
13.1
62.7
👆🏻
doyo termal
18.60 W / m · K142.00 W / m · K
0
429
👆🏻
suhu kritis
973.00 K2,573.00 K
26.3
3695
👆🏻
Expansion termal
8.50 μm / (m · K)71.00 μm / (m · K)
4.5
97
👆🏻
enthalpy
Enthalpy panguapan
113.00 kJ / mol89.04 kJ / mol
7.32
799.1
👆🏻
Enthalpy saka Fusion
8.60 kJ / mol2.59 kJ / mol
2.1
35.23
👆🏻
Enthalpy saka atomization
163.00 kJ / mol108.40 kJ / mol
61.5
837
👆🏻
Standard molar Entropy
71.00 J / mol.K51.30 J / mol.K
9.5
198.1
👆🏻