Symbol
Ra
Ga
Panggil Group
213
0
17
👆🏻
Panggil periode
74
2
7
👆🏻
Block
s pemblokiran
p pemblokiran
Family unsur
alkalin bumi
Transisi Post-
CAS Number
74401447440553
7429905
54386242
👆🏻
Jeneng papan Group
3M Im_
Cmca
Space Group Number
229.0064.00
11
276
👆🏻
Facts Interesting
- metal Radium punika logam abot saka Alkaline logam bumi asli.
- Radium logam punika Highly radioaktif lan ora duwe tengen mangiwa.
- A gram saka logam Gallium bisa tuku mung telung dolar.
- Panerapan logam ketemu ing ores bab ing ngisor iki Coal, Bauksit, Diaspore, sphalerite, germanite lan Seng.
sumber
Mining, Ores logam
bumi lemah ndhuwur, Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
-
Lecoq de Boisbaudran
Discovery
ing taun 1898
ing taun 1875
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
-0.00 %
0
22
👆🏻
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %0.00 %
1E-37
8.1
👆🏻
Turah mbrawah Ing Segara
0.00 %0.00 %
0
1.1
👆🏻
Turah mbrawah Ing Manungsa
0.00 %0.00 %
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.
- Panerapan arsenida punika komponèn penting banget akeh semikonduktor lan manufaktur mimpin.
- Panerapan nitride uga ngerti minangka semikonduktor lan digunakake ing teknologi Blu-ray, Smartphone mobile lan LED.
Ulah Industrial
-
Industry Listrik, Industry Elektronik
Ulah Medical
Industry Pharmaceutical
Surgical Instruments Manufacturing
Ulah liyane
-
wesi
Properties biologi
keracunan
Highly Toxic
non Toxic
Saiki ing badan Human
Ora
Ya
Sang
0.00 Sang / mg dm-30.08 Sang / mg dm-3
0
1970
👆🏻
ing Bone
0.00 ppm0.00 ppm
0
170000
👆🏻
leleh Point
700.00 ° C29.78 ° C
-38.83
3410
👆🏻
Boiling Point
1,737.00 ° C2,403.00 ° C
0
5660
👆🏻
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
metallic
metallic
atose
Mohs atose
1.001.50
0.2
8.5
👆🏻
Brinell atose
700.00 MPa56.80 MPa
0.14
3490
👆🏻
Vickers atose
140.00 MPa111.00 MPa
0
3920
👆🏻
Kacepetan swara
3,150.00 m / s2,740.00 m / s
818
16200
👆🏻
Properties Optical
bias Index
1.001.81
0.155
3.41
👆🏻
reflectivity
83.00 %36.00 %
5
97
👆🏻
allotropes
Ora
Ora
α allotropes
-
-
β allotropes
-
-
γ allotropes
-
-
Formula Kimia
Ra
Ga
isotop
Isotop dikenal
3324
0
38
👆🏻
keelektronegatifan
Pauling Elektronegativitas
0.901.81
0
2.6
👆🏻
Sanderson Elektronegativitas
0.892.42
0.22
2.56
👆🏻
Allred Rochow Elektronegativitas
0.971.82
0.86
1.9
👆🏻
Mulliken-Jaffe Elektronegativitas
0.922.01
0.62
2.48
👆🏻
Allen Elektronegativitas
0.891.76
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
3.102.19
1.46
3.3
👆🏻
tenogo ionisasi
Level Energy 1st
509.30 kJ / mol578.80 kJ / mol
375.7
26130
👆🏻
Level Energy 2
979.00 kJ / mol1,979.30 kJ / mol
392.8
28750
👆🏻
Level Energy 3rd
509.30 kJ / mol2,963.00 kJ / mol
392.8
34230
👆🏻
Level Energy 4
5,093.00 kJ / mol6,180.00 kJ / mol
375.7
37066
👆🏻
Level Energy 5th
5,090.00 kJ / mol5,787.00 kJ / mol
392
97510
👆🏻
Level Energy 6th
5,090.00 kJ / mol5,787.00 kJ / mol
1007
105800
👆🏻
tingkat Energy 7
5,090.00 kJ / mol5,780.00 kJ / mol
1007
114300
👆🏻
Level Energy 8
5,090.00 kJ / mol5,780.00 kJ / mol
730
125300
👆🏻
Level Energy 9
5,090.00 kJ / mol5,787.00 kJ / mol
1007
134700
👆🏻
Level Energy 10th
5,090.00 kJ / mol5,787.00 kJ / mol
392
144300
👆🏻
Level Energy 11
5,090.00 kJ / mol5,780.00 kJ / mol
392
169988
👆🏻
Level Energy 12
5,090.00 kJ / mol57,800.00 kJ / mol
0
189368
👆🏻
Level Energy 13
5,090.00 kJ / mol5,780.00 kJ / mol
1007
76015
👆🏻
Level Energy 14
5,090.00 kJ / mol578.00 kJ / mol
380
86450
👆🏻
Level Energy 15
50,900.00 kJ / mol57,800.00 kJ / mol
33000
100700
👆🏻
Level Energy 16
50,900.00 kJ / mol57,800.00 kJ / mol
375.7
109480
👆🏻
Level Energy 17
509.30 kJ / mol578.80 kJ / mol
375.7
122200
👆🏻
Level Energy 18
5,090.00 kJ / mol5,787.00 kJ / mol
0
134810
👆🏻
Level Energy 19
509.30 kJ / mol578.80 kJ / mol
375.7
148700
👆🏻
Level Energy 20
509.00 kJ / mol578.00 kJ / mol
0
171200
👆🏻
Level Energy 21
509.30 kJ / mol578.80 kJ / mol
375.7
179100
👆🏻
Level Energy 22
509.00 kJ / mol578.00 kJ / mol
330
184900
👆🏻
Level Energy 23rd
509.30 kJ / mol578.80 kJ / mol
357.6
198800
👆🏻
Level Energy 24
509.30 kJ / mol578.80 kJ / mol
297.3
195200
👆🏻
Level Energy 25th
509.00 kJ / mol578.00 kJ / mol
0
121900
👆🏻
Level Energy 26th
509.30 kJ / mol578.80 kJ / mol
357.6
127700
👆🏻
Level Energy 27th
509.30 kJ / mol578.80 kJ / mol
0
133800
👆🏻
Level Energy 28th
509.30 kJ / mol578.80 kJ / mol
297.3
139800
👆🏻
Level Energy 29
509.30 kJ / mol578.80 kJ / mol
0
148100
👆🏻
Level Energy 30
509.00 kJ / mol578.80 kJ / mol
0
154500
👆🏻
padha karo elektrokimia
4.22 g / amp-day0.87 g / amp-day
0.16812
8.3209
👆🏻
Fungsi Work elektron
4.30 eV4.20 eV
2.14
6
👆🏻
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
ionisasi, Isotop radioaktif
Panggil atom
8831
3
117
👆🏻
Konfigurasi elektron
[Rn] 7s 2
[Ar] 3d 10 4s 2 4p 1
Struktur Crystal
Body tengah kubik (Bcc)
Orthorhombic (Orth)
Crystal pola
atom
Jumlah proton
8831
3
117
👆🏻
Jumlah Neutron
13839
4
285
👆🏻
Jumlah Èlèktron
8831
3
117
👆🏻
Radius saka Atom
Radius atom
215.00 pm135.00 pm
0
348
👆🏻
kovalen Radius
221.00 pm122.00 pm
0
260
👆🏻
Van der Waals Radius
283.00 pm187.00 pm
0
348
👆🏻
Bobot atom
226.00 Amu69.72 Amu
6.94
294
👆🏻
Volume atom
45.20 cm3 / mol11.80 cm3 / mol
1.39
71.07
👆🏻
Nomer atom jejer
unsur Previous
Sabanjure unsur
Potensi Valence Electron
20.10 (-eV)69.70 (-eV)
0
392.42
👆🏻
Constant pola
514.80 pm451.97 pm
0
891.25
👆🏻
pola Angles
π/2, π/2, π/2
π/2, π/2, π/2
Pola C / A rasio
1.571.30
0.423
1.9
👆🏻
Kapadhetan
Kapadhetan Ing suhu kamar
5.50 g / cm 35.91 g / cm 3
0.534
40.7
👆🏻
Kapadhetan Nalika Liquid (ing mp)
5.50 g / cm36.10 g / cm3
0.512
41
👆🏻
Strength tensile
40.00 MPa41.00 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 GPA7.20 GPA
1.3
222
👆🏻
pengaturan akeh
43.00 GPA37.30 GPA
0
462
👆🏻
Young kang pengaturan
83.00 GPA9.80 GPA
0
528
👆🏻
Poisson rasio
0.310.47
0.032
0.47
👆🏻
Properties Teknik liyane
-
-
Ciri Magnetic
Gravitasi tartamtu
5.005.91
0.53
4500
👆🏻
Nindakake Magnetic
nonmagnetic
diamagnetic
permeabilitas
0.00 H / m0.00 H / m
1.25643E-06
0.0063
👆🏻
kelemahan
0.000.00
-0.000166
200000
👆🏻
Properties Listrik
Property Listrik
-
Semiconductor
resistivity
100.00 nΩ · m270.00 nΩ · m
0.1
961
👆🏻
konduktivitas listrik
0.00 10 6 / cm Ω0.07 10 6 / cm Ω
0
0.63
👆🏻
elektron Affinity
0.90 kJ / mol28.90 kJ / mol
0
222.8
👆🏻
Kalor tartamtu
0.12 J / (kg K)0.37 J / (kg K)
0.1
3.6
👆🏻
Graham Kapasitas kalor
20.05 J / mol · K25.86 J / mol · K
13.1
62.7
👆🏻
doyo termal
18.60 W / m · K40.60 W / m · K
0
429
👆🏻
suhu kritis
973.00 K302.00 K
26.3
3695
👆🏻
Expansion termal
8.50 μm / (m · K)18.00 μm / (m · K)
4.5
97
👆🏻
enthalpy
Enthalpy panguapan
113.00 kJ / mol256.10 kJ / mol
7.32
799.1
👆🏻
Enthalpy saka Fusion
8.60 kJ / mol5.59 kJ / mol
2.1
35.23
👆🏻
Enthalpy saka atomization
163.00 kJ / mol276.10 kJ / mol
61.5
837
👆🏻
Standard molar Entropy
71.00 J / mol.K40.80 J / mol.K
9.5
198.1
👆🏻