barium mungsuh Holmium
Tabel périodik
Symbol
Ba
Ho
Panggil Group
2
16
ora Sumadhiya
Panggil periode
6
6
Block
s pemblokiran
pemblokiran f
Family unsur
alkalin bumi
lanthanide
CAS Number
7440393
99+
7440600
29
Jeneng papan Group
3M Im_
P63 / mmc
Space Group Number
229.00
1
194.00
5
facts
Facts Interesting
Character length exceed error
- metal Holmium sanget alus lan malleable.
- metal Holmium uga dikenal kanggo resistivity sawijining karat.
sumber
bumi lemah ndhuwur, Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Carl Wilhelm Scheele
Marc Delafontaine
Discovery
ing taun 1772
ing taun 1878
turah mbrawah
Turah mbrawah Ing Universe
1 * 10-6 %
16
5 * 10-8 %
27
Turah mbrawah Ing Sun
~0.000001 %
18
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
20
0.00 %
99+
Turah mbrawah Ing bumi lemah ndhuwur
0.03 %
11
0.00 %
38
Turah mbrawah Ing Segara
0.00 %
8
0.00 %
99+
Turah mbrawah Ing Manungsa
0.00 %
12
ora Sumadhiya
ulah
Ulah lan Wuku
- 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.
- 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.
Ulah Industrial
Industry amunisi, Industry automobile, Industry Listrik, Industry Elektronik
NA
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi, Nuclear Riset
Properties biologi
keracunan
Low Toxic
Low Toxic
Saiki ing badan Human
Ya
Ora
Sang
0.07 Sang / mg dm-3
15
ora Sumadhiya
ing Bone
70.00 ppm
9
ora Sumadhiya
fisik Properties
leleh Point
725.00 ° C
99+
1,461.00 ° C
30
Boiling Point
1,140.00 ° C
99+
2,600.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Gray
perak Putih
luster
NA
metallic
atose
Mohs atose
1.25
19
ora Sumadhiya
Brinell atose
ora Sumadhiya
746.00 MPa
13
Vickers atose
ora Sumadhiya
481.00 MPa
23
Kacepetan swara
1,620.00 m / s
99+
2,760.00 m / s
30
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
Ba
Ho
isotop
Isotop dikenal
37
2
34
5
keelektronegatifan
Pauling Elektronegativitas
0.89
99+
1.23
37
Sanderson Elektronegativitas
0.68
28
ora Sumadhiya
Allred Rochow Elektronegativitas
0.97
38
1.10
30
Mulliken-Jaffe Elektronegativitas
0.88
22
ora Sumadhiya
Allen Elektronegativitas
0.88
99+
ora Sumadhiya
Electropositivity
Pauling Electropositivity
3.11
4
2.77
17
tenogo ionisasi
Level Energy 1st
502.90 kJ / mol
99+
581.00 kJ / mol
99+
Level Energy 2
965.20 kJ / mol
99+
1,140.00 kJ / mol
99+
Level Energy 3rd
3,600.00 kJ / mol
14
2,204.00 kJ / mol
99+
Level Energy 4
ora Sumadhiya
4,100.00 kJ / mol
34
padha karo elektrokimia
2.56 g / amp-day
20
2.02 g / amp-day
29
Fungsi Work elektron
2.70 eV
99+
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
56
99+
67
99+
Konfigurasi elektron
[Xe] 6s 2
[Xe] 4F 11 6s 2
Struktur Crystal
Body tengah kubik (Bcc)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
BCC-Crystal-Structure-.jpg#100
HCP-Crystal-Structure-of-Holmium.jpg#100
atom
Jumlah proton
56
99+
67
99+
Jumlah Neutron
81
99+
98
34
Jumlah Èlèktron
56
99+
67
99+
Radius saka Atom
Radius atom
222.00 pm
4
176.00 pm
18
kovalen Radius
215.00 pm
5
192.00 pm
17
Van der Waals Radius
268.00 pm
6
216.00 pm
24
Bobot atom
137.33 Amu
99+
164.93 Amu
99+
Volume atom
39.24 cm3 / mol
5
18.70 cm3 / mol
24
Nomer atom jejer
Potensi Valence Electron
21.30 (-eV)
99+
47.90 (-eV)
31
Constant pola
502.80 pm
15
357.73 pm
38
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
1.57
17
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
3.51 g / cm 3
99+
8.79 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
3.34 g / cm3
99+
8.34 g / cm3
26
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
7.11 (Pa)
6
0.00 (Pa)
16
situs kelenturan
nyukur pengaturan
4.90 GPA
99+
26.30 GPA
28
pengaturan akeh
9.60 GPA
99+
40.20 GPA
32
Young kang pengaturan
13.00 GPA
99+
64.80 GPA
31
Poisson rasio
ora Sumadhiya
0.23
29
Properties Teknik liyane
NA
ductile, malleable, Sectile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
3.62
99+
8.80
35
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
superconductor
Arman
resistivity
332.00 nΩ · m
13
814.00 nΩ · m
4
konduktivitas listrik
0.03 10 6 / cm Ω
40
0.01 10 6 / cm Ω
99+
elektron Affinity
13.95 kJ / mol
36
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.20 J / (kg K)
30
0.16 J / (kg K)
35
Graham Kapasitas kalor
28.07 J / mol · K
12
27.15 J / mol · K
19
doyo termal
18.40 W / m · K
99+
16.20 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
20.60 μm / (m · K)
22
11.20 μm / (m · K)
35
enthalpy
Enthalpy panguapan
140.00 kJ / mol
99+
241.00 kJ / mol
38
Enthalpy saka Fusion
7.66 kJ / mol
99+
11.76 kJ / mol
29
Enthalpy saka atomization
175.70 kJ / mol
99+
301.00 kJ / mol
36
Standard molar Entropy
62.50 J / mol.K
20
75.30 J / mol.K
8
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