Radium mungsuh tantalum
Tabel périodik
Symbol
Ra
Ta
Panggil Group
2
16
5
13
Panggil periode
7
6
Block
s pemblokiran
d block
Family unsur
alkalin bumi
transisi Metal
CAS Number
7440144
99+
7440257
99+
Jeneng papan Group
3M Im_
3M Im_
Space Group Number
229.00
1
229.00
1
facts
Facts Interesting
- metal Radium punika logam abot saka Alkaline logam bumi asli.
- Radium logam punika Highly radioaktif lan ora duwe tengen mangiwa.
- Tantalum logam dikenal minangka resistance karat.
- Tantalum logam bisa gampang fabricated lan Punika dirijen apik saka panas lan listrik.
sumber
Mining, Ores logam
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Not Available
Anders Gustaf Ekeberg
Discovery
ing taun 1898
ing taun 1802
turah mbrawah
Turah mbrawah Ing Universe
ora Sumadhiya
8 * 10-9 %
31
Turah mbrawah Ing meteorit
ora Sumadhiya
0.00 %
99+
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
99+
0.00 %
37
Turah mbrawah Ing Segara
0.00 %
99+
0.00 %
31
Turah mbrawah Ing Manungsa
0.00 %
20
ora Sumadhiya
ulah
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
Ulah Industrial
NA
Industry Listrik, Industry Elektronik
Ulah Medical
Industry Pharmaceutical
NA
Ulah liyane
NA
wesi
Properties biologi
keracunan
Highly Toxic
Low Toxic
Saiki ing badan Human
Ora
Ya
ing Bone
ora Sumadhiya
0.03 ppm
28
fisik Properties
leleh Point
700.00 ° C
99+
2,996.00 ° C
4
Boiling Point
1,737.00 ° C
99+
5,425.00 ° C
4
katon
State fisik
Solid
Solid
warna
perak Putih
Gray Blue
luster
metallic
metallic
atose
Mohs atose
ora Sumadhiya
6.50
5
Brinell atose
ora Sumadhiya
440.00 MPa
28
Vickers atose
ora Sumadhiya
870.00 MPa
12
Kacepetan swara
ora Sumadhiya
3,400.00 m / s
22
Properties Optical
reflectivity
ora Sumadhiya
78.00 %
6
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
Ra
Ta
isotop
Isotop dikenal
33
6
31
8
keelektronegatifan
Pauling Elektronegativitas
0.90
99+
1.50
27
Allred Rochow Elektronegativitas
0.97
38
1.33
22
Mulliken-Jaffe Elektronegativitas
0.92
20
ora Sumadhiya
Allen Elektronegativitas
0.89
99+
1.34
33
Electropositivity
Pauling Electropositivity
3.10
5
2.50
27
tenogo ionisasi
Level Energy 1st
509.30 kJ / mol
99+
761.00 kJ / mol
18
Level Energy 2
979.00 kJ / mol
99+
1,500.00 kJ / mol
40
padha karo elektrokimia
4.22 g / amp-day
6
1.35 g / amp-day
99+
Fungsi Work elektron
ora Sumadhiya
4.25 eV
21
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
anti Corrosion, ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
88
30
73
99+
Konfigurasi elektron
[Rn] 7s 2
[Xe] 4F 14 5d 3 6s 2
Struktur Crystal
Body tengah kubik (Bcc)
Body tengah kubik (Bcc)
Crystal pola
BCC-Crystal-Structure-.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
88
30
73
99+
Jumlah Neutron
138
16
108
28
Jumlah Èlèktron
88
30
73
99+
Radius saka Atom
Radius atom
ora Sumadhiya
146.00 pm
35
kovalen Radius
221.00 pm
3
170.00 pm
25
Van der Waals Radius
283.00 pm
4
200.00 pm
28
Bobot atom
226.00 Amu
26
180.95 Amu
38
Volume atom
45.20 cm3 / mol
4
10.90 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
20.10 (-eV)
99+
110.00 (-eV)
7
Constant pola
514.80 pm
13
330.13 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
5.50 g / cm 3
99+
16.69 g / cm 3
18
Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya
15.00 g / cm3
9
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 2000 K
ora Sumadhiya
0.00 (Pa)
31
situs kelenturan
nyukur pengaturan
ora Sumadhiya
69.00 GPA
13
pengaturan akeh
ora Sumadhiya
200.00 GPA
8
Young kang pengaturan
ora Sumadhiya
186.00 GPA
13
Poisson rasio
ora Sumadhiya
0.34
10
Properties Teknik liyane
NA
ductile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
5.00
99+
16.65
11
Nindakake Magnetic
nonmagnetic
paramagnetic
Properties Listrik
Property Listrik
NA
Arman
resistivity
100.00 nΩ · m
31
131.00 nΩ · m
25
konduktivitas listrik
ora Sumadhiya
0.08 10 6 / cm Ω
27
elektron Affinity
ora Sumadhiya
31.00 kJ / mol
29
termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
0.14 J / (kg K)
37
Graham Kapasitas kalor
ora Sumadhiya
25.36 J / mol · K
99+
doyo termal
18.60 W / m · K
99+
57.50 W / m · K
27
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
ora Sumadhiya
6.30 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
ora Sumadhiya
753.10 kJ / mol
2
Enthalpy saka Fusion
ora Sumadhiya
31.40 kJ / mol
3
Enthalpy saka atomization
163.00 kJ / mol
99+
782.00 kJ / mol
3
Standard molar Entropy
71.00 J / mol.K
14
41.50 J / mol.K
37
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