Holmium mungsuh barium
Tabel périodik
Symbol
Ho
Ba
Panggil Group
ora Sumadhiya
2
16
Panggil periode
6
6
Block
pemblokiran f
s pemblokiran
Family unsur
lanthanide
alkalin bumi
CAS Number
7440600
29
7440393
99+
Jeneng papan Group
P63 / mmc
3M Im_
Space Group Number
194.00
5
229.00
1
facts
Facts Interesting
- metal Holmium sanget alus lan malleable.
- metal Holmium uga dikenal kanggo resistivity sawijining karat.
Character length exceed error
sumber
Found in Minerals, Mining, Ores saka Minerals
bumi lemah ndhuwur, Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Marc Delafontaine
Carl Wilhelm Scheele
Discovery
ing taun 1878
ing taun 1772
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-8 %
27
1 * 10-6 %
16
Turah mbrawah Ing Sun
~-9999 %
~0.000001 %
18
Turah mbrawah Ing meteorit
0.00 %
99+
0.00 %
20
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
38
0.03 %
11
Turah mbrawah Ing Segara
0.00 %
99+
0.00 %
8
Turah mbrawah Ing Manungsa
ora Sumadhiya
0.00 %
12
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.
- Punika digugat ing Manufaktur Paint kimia lan Manufaktur kaca.
- Senyawa saka logam beracun; nanging isih barium sulfat punika insoluble lan diwenehi kanggo patients gerah saka kelainan pencernaan.
Ulah Industrial
NA
Industry amunisi, Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi, Nuclear Riset
wesi
Properties biologi
keracunan
Low Toxic
Low Toxic
Saiki ing badan Human
Ora
Ya
Sang
ora Sumadhiya
0.07 Sang / mg dm-3
15
ing Bone
ora Sumadhiya
70.00 ppm
9
fisik Properties
leleh Point
1,461.00 ° C
30
725.00 ° C
99+
Boiling Point
2,600.00 ° C
99+
1,140.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Gray
luster
metallic
NA
atose
Mohs atose
ora Sumadhiya
1.25
19
Brinell atose
746.00 MPa
13
ora Sumadhiya
Vickers atose
481.00 MPa
23
ora Sumadhiya
Kacepetan swara
2,760.00 m / s
30
1,620.00 m / s
99+
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
Ho
Ba
isotop
Isotop dikenal
34
5
37
2
keelektronegatifan
Pauling Elektronegativitas
1.23
37
0.89
99+
Sanderson Elektronegativitas
ora Sumadhiya
0.68
28
Allred Rochow Elektronegativitas
1.10
30
0.97
38
Mulliken-Jaffe Elektronegativitas
ora Sumadhiya
0.88
22
Allen Elektronegativitas
ora Sumadhiya
0.88
99+
Electropositivity
Pauling Electropositivity
2.77
17
3.11
4
tenogo ionisasi
Level Energy 1st
581.00 kJ / mol
99+
502.90 kJ / mol
99+
Level Energy 2
1,140.00 kJ / mol
99+
965.20 kJ / mol
99+
Level Energy 3rd
2,204.00 kJ / mol
99+
3,600.00 kJ / mol
14
Level Energy 4
4,100.00 kJ / mol
34
ora Sumadhiya
padha karo elektrokimia
2.02 g / amp-day
29
2.56 g / amp-day
20
Fungsi Work elektron
ora Sumadhiya
2.70 eV
99+
Properties Kimia liyane
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
67
99+
56
99+
Konfigurasi elektron
[Xe] 4F 11 6s 2
[Xe] 6s 2
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Body tengah kubik (Bcc)
Crystal pola
HCP-Crystal-Structure-of-Holmium.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
67
99+
56
99+
Jumlah Neutron
98
34
81
99+
Jumlah Èlèktron
67
99+
56
99+
Radius saka Atom
Radius atom
176.00 pm
18
222.00 pm
4
kovalen Radius
192.00 pm
17
215.00 pm
5
Van der Waals Radius
216.00 pm
24
268.00 pm
6
Bobot atom
164.93 Amu
99+
137.33 Amu
99+
Volume atom
18.70 cm3 / mol
24
39.24 cm3 / mol
5
Nomer atom jejer
Potensi Valence Electron
47.90 (-eV)
31
21.30 (-eV)
99+
Constant pola
357.73 pm
38
502.80 pm
15
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+
3.51 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
8.34 g / cm3
26
3.34 g / cm3
99+
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa)
16
7.11 (Pa)
6
situs kelenturan
nyukur pengaturan
26.30 GPA
28
4.90 GPA
99+
pengaturan akeh
40.20 GPA
32
9.60 GPA
99+
Young kang pengaturan
64.80 GPA
31
13.00 GPA
99+
Poisson rasio
0.23
29
ora Sumadhiya
Properties Teknik liyane
ductile, malleable, Sectile
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
8.80
35
3.62
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
superconductor
resistivity
814.00 nΩ · m
4
332.00 nΩ · m
13
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.03 10 6 / cm Ω
40
elektron Affinity
50.00 kJ / mol
21
13.95 kJ / mol
36
termal Properties
Kalor tartamtu
0.16 J / (kg K)
35
0.20 J / (kg K)
30
Graham Kapasitas kalor
27.15 J / mol · K
19
28.07 J / mol · K
12
doyo termal
16.20 W / m · K
99+
18.40 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
11.20 μm / (m · K)
35
20.60 μm / (m · K)
22
enthalpy
Enthalpy panguapan
241.00 kJ / mol
38
140.00 kJ / mol
99+
Enthalpy saka Fusion
11.76 kJ / mol
29
7.66 kJ / mol
99+
Enthalpy saka atomization
301.00 kJ / mol
36
175.70 kJ / mol
99+
Standard molar Entropy
75.30 J / mol.K
8
62.50 J / mol.K
20
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