rhodium mungsuh Radium
Tabel périodik
Symbol
Rh
Ra
Panggil Group
9
9
2
16
Panggil periode
5
7
Block
d block
s pemblokiran
Family unsur
transisi Metal
alkalin bumi
CAS Number
7440166
99+
7440144
99+
Jeneng papan Group
Fm_ 3M
3M Im_
Space Group Number
225.00
2
229.00
1
facts
Facts Interesting
- Rhodium punika unsur paling langka metu kabeh logam non-radioaktif ing bumi.
- Rhodium punika salah siji sing paling awet lan hard logam, kang uga duwe reflectance dhuwur.
- metal Radium punika logam abot saka Alkaline logam bumi asli.
- Radium logam punika Highly radioaktif lan ora duwe tengen mangiwa.
sumber
bumi lemah ndhuwur, Found Minangka By-produk, Found in Minerals, Mining
Mining, Ores logam
History
sing katutup
William Hyde Wollaston
Not Available
Discovery
ing taun 1804
ing taun 1898
turah mbrawah
Turah mbrawah Ing Universe
6 * 10-8 %
26
ora Sumadhiya
Turah mbrawah Ing Sun
~0.0000002 %
25
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
36
ora Sumadhiya
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
99+
0.00 %
99+
Turah mbrawah Ing Segara
ora Sumadhiya
0.00 %
99+
Turah mbrawah Ing Manungsa
ora Sumadhiya
0.00 %
20
ulah
Ulah lan Wuku
Character length exceed error
- Punika logam Highly radioaktif; lan arang-arang Radium-223 digunakake kanggo nambani kanker prostat.
- Kang digunakake ing cat cetha.
Ulah Industrial
Industry Aerospace, Industry automobile, Industry Listrik, Industry Elektronik
NA
Ulah Medical
NA
Industry Pharmaceutical
Ulah liyane
wesi
NA
Properties biologi
keracunan
NA
Highly Toxic
Saiki ing badan Human
Ora
Ora
fisik Properties
leleh Point
1,966.00 ° C
12
700.00 ° C
99+
Boiling Point
3,727.00 ° C
17
1,737.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
metallic
metallic
atose
Mohs atose
6.00
6
ora Sumadhiya
Brinell atose
980.00 MPa
9
ora Sumadhiya
Vickers atose
1,100.00 MPa
9
ora Sumadhiya
Kacepetan swara
4,700.00 m / s
15
ora Sumadhiya
Properties Optical
reflectivity
84.00 %
4
ora Sumadhiya
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
Rh
Ra
isotop
Isotop dikenal
16
23
33
6
keelektronegatifan
Pauling Elektronegativitas
2.28
3
0.90
99+
Allred Rochow Elektronegativitas
1.45
16
0.97
38
Mulliken-Jaffe Elektronegativitas
ora Sumadhiya
0.92
20
Allen Elektronegativitas
1.56
24
0.89
99+
Electropositivity
Pauling Electropositivity
1.72
99+
3.10
5
tenogo ionisasi
Level Energy 1st
719.70 kJ / mol
29
509.30 kJ / mol
99+
Level Energy 2
1,740.00 kJ / mol
26
979.00 kJ / mol
99+
Level Energy 3rd
2,997.00 kJ / mol
27
ora Sumadhiya
padha karo elektrokimia
1.28 g / amp-day
99+
4.22 g / amp-day
6
Fungsi Work elektron
4.98 eV
6
ora Sumadhiya
Properties Kimia liyane
anti Corrosion, ionisasi, Isotop radioaktif
ionisasi, Isotop radioaktif, Radioaktif
atom Properties
Panggil atom
45
99+
88
30
Konfigurasi elektron
[Kr] 4d 8 5S 1
[Rn] 7s 2
Struktur Crystal
Face tengah kubik (FCC)
Body tengah kubik (Bcc)
Crystal pola
FCC-Crystal-Structure-of-Rhodium.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
45
99+
88
30
Jumlah Neutron
58
99+
138
16
Jumlah Èlèktron
45
99+
88
30
Radius saka Atom
Radius atom
134.00 pm
99+
ora Sumadhiya
kovalen Radius
142.00 pm
99+
221.00 pm
3
Van der Waals Radius
200.00 pm
28
283.00 pm
4
Bobot atom
102.91 Amu
99+
226.00 Amu
26
Volume atom
8.30 cm3 / mol
99+
45.20 cm3 / mol
4
Nomer atom jejer
Potensi Valence Electron
64.00 (-eV)
22
20.10 (-eV)
99+
Constant pola
380.34 pm
27
514.80 pm
13
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
12.41 g / cm 3
28
5.50 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
10.70 g / cm3
14
ora Sumadhiya
Strength tensile
951.00 MPa
5
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 2000 K
0.02 (Pa)
19
ora Sumadhiya
situs kelenturan
nyukur pengaturan
150.00 GPA
6
ora Sumadhiya
pengaturan akeh
275.00 GPA
5
ora Sumadhiya
Young kang pengaturan
380.00 GPA
5
ora Sumadhiya
Poisson rasio
0.26
22
ora Sumadhiya
Properties Teknik liyane
malleable
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
12.41
20
5.00
99+
Nindakake Magnetic
paramagnetic
nonmagnetic
Properties Listrik
Property Listrik
Arman
NA
resistivity
43.30 nΩ · m
99+
100.00 nΩ · m
31
konduktivitas listrik
0.21 10 6 / cm Ω
8
ora Sumadhiya
elektron Affinity
109.70 kJ / mol
7
ora Sumadhiya
termal Properties
Kalor tartamtu
0.24 J / (kg K)
22
0.12 J / (kg K)
40
Graham Kapasitas kalor
24.98 J / mol · K
99+
ora Sumadhiya
doyo termal
150.00 W / m · K
9
18.60 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
8.20 μm / (m · K)
99+
ora Sumadhiya
enthalpy
Enthalpy panguapan
495.40 kJ / mol
12
ora Sumadhiya
Enthalpy saka Fusion
21.76 kJ / mol
10
ora Sumadhiya
Enthalpy saka atomization
556.50 kJ / mol
12
163.00 kJ / mol
99+
Standard molar Entropy
31.50 J / mol.K
99+
71.00 J / mol.K
14
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