sesium mungsuh Hafnium
Tabel périodik
Symbol
Cs
Hf
Panggil Group
1
17
4
14
Panggil periode
6
6
Block
s pemblokiran
d block
Family unsur
alkali
transisi Metal
CAS Number
7440462
40
7440586
30
Jeneng papan Group
3M Im_
P63 / mmc
Space Group Number
229.00
1
194.00
5
facts
Facts Interesting
ora Cepak
- Hafnium logam reaktif, Empu ora ketemu gratis ing alam.
- metal Hafnium minangka predicated sawise Mendeleev rampung tabel périodik kang.
sumber
bumi lemah ndhuwur, Found in Minerals, Mining, Ores saka Minerals
Miturut-produk Nyaring panggolekan Zirconium
History
sing katutup
Robert Bunsen and Gustav Kirchhoff
Dirk Coster and George de Hevesy
Discovery
ing taun 1860
ing taun 1922
turah mbrawah
Turah mbrawah Ing Universe
8 * 10-8 %
24
7 * 10-8 %
25
Turah mbrawah Ing Sun
~0.0000008 %
20
~0.0000001 %
26
Turah mbrawah Ing meteorit
0.00 %
38
0.00 %
37
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
35
0.00 %
31
Turah mbrawah Ing Segara
0.00 %
17
0.00 %
27
Turah mbrawah Ing Manungsa
0.00 %
17
ora Sumadhiya
ulah
Ulah lan Wuku
- nggunakake paling umum saka logam Sesium yaiku adi ngebur. Sampeyan uga dipigunakaké ing Manufaktur kaca optik.
- Ing tabung vakum lan peralatan monitor radiation logam iki digunakake minangka katalis tukang promosi.
Character length exceed error
Ulah Industrial
Industry Aerospace, Industry automobile, Industry Listrik, Industry Elektronik
Industry amunisi
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi, Ing Reactors Nuclear, Nuclear Riset, tujuan Research
Properties biologi
keracunan
mildly Toxic
Toxic
Saiki ing badan Human
Ya
Ora
Sang
0.00 Sang / mg dm-3
28
ora Sumadhiya
ing Bone
0.05 ppm
26
ora Sumadhiya
fisik Properties
leleh Point
28.50 ° C
99+
2,150.00 ° C
10
Boiling Point
678.40 ° C
99+
5,400.00 ° C
5
katon
State fisik
Solid
Solid
warna
Gold perak
Gray
luster
NA
metallic
atose
Mohs atose
0.20
25
5.50
7
Brinell atose
0.14 MPa
99+
1,450.00 MPa
6
Vickers atose
ora Sumadhiya
1,520.00 MPa
5
Kacepetan swara
ora Sumadhiya
3,010.00 m / s
27
Properties Optical
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
Cs
Hf
isotop
Isotop dikenal
36
3
32
7
keelektronegatifan
Pauling Elektronegativitas
0.79
99+
1.30
32
Sanderson Elektronegativitas
0.22
33
ora Sumadhiya
Allred Rochow Elektronegativitas
0.86
99+
1.23
25
Mulliken-Jaffe Elektronegativitas
0.62
26
ora Sumadhiya
Allen Elektronegativitas
0.66
99+
1.16
37
Electropositivity
Pauling Electropositivity
3.21
2
2.70
22
tenogo ionisasi
Level Energy 1st
375.70 kJ / mol
99+
658.50 kJ / mol
40
Level Energy 2
2,234.30 kJ / mol
8
1,440.00 kJ / mol
99+
Level Energy 3rd
3,400.00 kJ / mol
16
2,250.00 kJ / mol
99+
Level Energy 4
ora Sumadhiya
3,216.00 kJ / mol
99+
padha karo elektrokimia
4.96 g / amp-day
3
1.66 g / amp-day
99+
Fungsi Work elektron
2.14 eV
99+
3.90 eV
27
Properties Kimia liyane
Kimia Stabilitas, Corrosion, ionisasi, Isotop radioaktif, kelarutan
anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
55
99+
72
99+
Konfigurasi elektron
[Xe] 6s 1
[Xe] 4F 14 5d 2 6s 2
Struktur Crystal
Body tengah kubik (Bcc)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
BCC-Crystal-Structure-.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
55
99+
72
99+
Jumlah Neutron
78
99+
106
29
Jumlah Èlèktron
55
99+
72
99+
Radius saka Atom
Radius atom
265.00 pm
1
159.00 pm
28
kovalen Radius
244.00 pm
2
175.00 pm
23
Van der Waals Radius
343.00 pm
2
200.00 pm
28
Bobot atom
132.91 Amu
99+
178.49 Amu
39
Volume atom
71.07 cm3 / mol
1
13.60 cm3 / mol
38
Nomer atom jejer
Potensi Valence Electron
8.62 (-eV)
99+
81.00 (-eV)
16
Constant pola
614.10 pm
5
319.64 pm
99+
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
1.58
12
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
1.93 g / cm 3
99+
13.31 g / cm 3
26
Kapadhetan Nalika Liquid (ing mp)
1.84 g / cm3
99+
12.00 g / cm3
12
Strength tensile
ora Sumadhiya
445.00 MPa
8
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 2000 K
ora Sumadhiya
0.00 (Pa)
24
situs kelenturan
nyukur pengaturan
ora Sumadhiya
30.00 GPA
23
pengaturan akeh
1.60 GPA
99+
110.00 GPA
15
Young kang pengaturan
1.70 GPA
99+
78.00 GPA
25
Poisson rasio
ora Sumadhiya
0.37
7
Properties Teknik liyane
ductile
ductile, malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
1.87
99+
13.31
18
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Semiconductor
Arman
resistivity
205.00 nΩ · m
17
331.00 nΩ · m
14
konduktivitas listrik
0.05 10 6 / cm Ω
35
0.03 10 6 / cm Ω
39
elektron Affinity
45.50 kJ / mol
25
0.00 kJ / mol
40
termal Properties
Kalor tartamtu
0.24 J / (kg K)
23
0.14 J / (kg K)
37
Graham Kapasitas kalor
32.21 J / mol · K
4
25.73 J / mol · K
36
doyo termal
35.90 W / m · K
36
23.00 W / m · K
99+
suhu kritis
1,938.00 K
5
ora Sumadhiya
Expansion termal
97.00 μm / (m · K)
1
5.90 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
65.90 kJ / mol
99+
661.10 kJ / mol
5
Enthalpy saka Fusion
2.10 kJ / mol
99+
25.10 kJ / mol
8
Enthalpy saka atomization
78.20 kJ / mol
99+
703.00 kJ / mol
5
Standard molar Entropy
85.20 J / mol.K
3
43.60 J / mol.K
34
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