Holmium mungsuh Platinum
Tabel périodik
Symbol
Ho
Pt
Panggil Group
ora Sumadhiya
10
8
Panggil periode
6
6
Block
pemblokiran f
d block
Family unsur
lanthanide
transisi Metal
CAS Number
7440600
29
7440064
99+
Jeneng papan Group
P63 / mmc
Fm_ 3M
Space Group Number
194.00
5
225.00
2
facts
Facts Interesting
- metal Holmium sanget alus lan malleable.
- metal Holmium uga dikenal kanggo resistivity sawijining karat.
- Platinum punika logam paling langka saka kategori logam larang regane ..
- Iklan Platinum diprodhuksi minangka prodhuk sampingan ores saka nikel.
sumber
Found in Minerals, Mining, Ores saka Minerals
Mining, Ores logam, Ores saka Minerals
History
sing katutup
Marc Delafontaine
Antonio de Ulloa
Discovery
ing taun 1878
ing 1735
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-8 %
27
5 * 10-7 %
19
Turah mbrawah Ing Sun
~-9999 %
~0.0000009 %
19
Turah mbrawah Ing meteorit
0.00 %
99+
0.00 %
25
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
38
0.00 %
99+
Turah mbrawah Ing Segara
0.00 %
99+
ora Sumadhiya
ulah
Ulah lan Wuku
- metal Holmium duwe kemampuan kanggo nresep neutron, supaya logam iki digunakake ing reaktor nuklir kanggo njaga reaksi berantai saka unsur ing kontrol.
- Wesi saka Holmium digunakake kanggo gawé Magnet.
- Platinum logam utamané dipigunakaké ing perhiasan.
- Platinum digunakake minangka katalis industri ing asam nitrat, silikon lan benzena.
Ulah Industrial
NA
Industry Aerospace, Industri Kimia
Ulah Medical
NA
Dentistry, Industry Pharmaceutical, Surgical Instruments Manufacturing
Ulah liyane
wesi, Nuclear Riset
wesi, bullion, koin, Jewellery, patung, Statues
Properties biologi
keracunan
Low Toxic
non Toxic
Saiki ing badan Human
Ora
Ora
fisik Properties
leleh Point
1,461.00 ° C
30
1,772.00 ° C
16
Boiling Point
2,600.00 ° C
99+
3,827.00 ° C
15
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
metallic
metallic
atose
Mohs atose
ora Sumadhiya
3.50
11
Brinell atose
746.00 MPa
13
300.00 MPa
34
Vickers atose
481.00 MPa
23
400.00 MPa
25
Kacepetan swara
2,760.00 m / s
30
2,800.00 m / s
29
Properties Optical
reflectivity
ora Sumadhiya
73.00 %
8
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
Ho
Pt
isotop
Isotop dikenal
34
5
35
4
keelektronegatifan
Pauling Elektronegativitas
1.23
37
2.28
3
Allred Rochow Elektronegativitas
1.10
30
1.44
17
Allen Elektronegativitas
ora Sumadhiya
1.72
16
Electropositivity
Pauling Electropositivity
2.77
17
1.72
99+
tenogo ionisasi
Level Energy 1st
581.00 kJ / mol
99+
870.00 kJ / mol
10
Level Energy 2
1,140.00 kJ / mol
99+
1,791.00 kJ / mol
21
Level Energy 3rd
2,204.00 kJ / mol
99+
ora Sumadhiya
Level Energy 4
4,100.00 kJ / mol
34
ora Sumadhiya
padha karo elektrokimia
2.02 g / amp-day
29
1.82 g / amp-day
35
Fungsi Work elektron
ora Sumadhiya
5.65 eV
1
Properties Kimia liyane
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
Kimia Stabilitas, anti Corrosion, ionisasi
atom Properties
Panggil atom
67
99+
78
38
Konfigurasi elektron
[Xe] 4F 11 6s 2
[Xe] 4F 14 5d 9 6s 1
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Face tengah kubik (FCC)
Crystal pola
HCP-Crystal-Structure-of-Holmium.jpg#100
FCC-Crystal-Structure-of-Platinum.jpg#100
atom
Jumlah proton
67
99+
78
38
Jumlah Neutron
98
34
117
24
Jumlah Èlèktron
67
99+
78
38
Radius saka Atom
Radius atom
176.00 pm
18
139.00 pm
39
kovalen Radius
192.00 pm
17
136.00 pm
99+
Van der Waals Radius
216.00 pm
24
175.00 pm
36
Bobot atom
164.93 Amu
99+
47.87 Amu
99+
Volume atom
18.70 cm3 / mol
24
9.09 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
47.90 (-eV)
31
392.42 (-eV)
1
Constant pola
357.73 pm
38
392.42 pm
24
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
1.57
17
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
8.79 g / cm 3
99+
21.45 g / cm 3
11
Kapadhetan Nalika Liquid (ing mp)
8.34 g / cm3
26
19.77 g / cm3
2
Strength tensile
ora Sumadhiya
125.00 MPa
14
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa)
16
ora Sumadhiya
Meksa beluk ing 2000 K
ora Sumadhiya
0.07 (Pa)
18
situs kelenturan
nyukur pengaturan
26.30 GPA
28
61.00 GPA
14
pengaturan akeh
40.20 GPA
32
230.00 GPA
6
Young kang pengaturan
64.80 GPA
31
168.00 GPA
14
Poisson rasio
0.23
29
0.38
6
Properties Teknik liyane
ductile, malleable, Sectile
ductile, malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
8.80
35
21.45
4
Nindakake Magnetic
paramagnetic
paramagnetic
permeabilitas
ora Sumadhiya
0.00 H / m
3
Properties Listrik
Property Listrik
Arman
Arman
resistivity
814.00 nΩ · m
4
105.00 nΩ · m
30
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.10 10 6 / cm Ω
21
elektron Affinity
50.00 kJ / mol
21
205.30 kJ / mol
2
termal Properties
Kalor tartamtu
0.16 J / (kg K)
35
0.13 J / (kg K)
39
Graham Kapasitas kalor
27.15 J / mol · K
19
25.86 J / mol · K
35
doyo termal
16.20 W / m · K
99+
71.60 W / m · K
24
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
11.20 μm / (m · K)
35
8.80 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
241.00 kJ / mol
38
510.50 kJ / mol
11
Enthalpy saka Fusion
11.76 kJ / mol
29
19.70 kJ / mol
12
Enthalpy saka atomization
301.00 kJ / mol
36
565.00 kJ / mol
11
Standard molar Entropy
75.30 J / mol.K
8
41.60 J / mol.K
36
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