Holmium mungsuh polonium
Tabel périodik
Symbol
Ho
Po
Panggil Group
ora Sumadhiya
16
2
Panggil periode
6
6
Block
pemblokiran f
p pemblokiran
Family unsur
lanthanide
Transisi Post-
CAS Number
7440600
29
7440086
99+
Jeneng papan Group
P63 / mmc
Pm-3M
Space Group Number
194.00
5
221.00
3
facts
Facts Interesting
- metal Holmium sanget alus lan malleable.
- metal Holmium uga dikenal kanggo resistivity sawijining karat.
- Polonium unsur radioaktif sing pisanan ditemokaké.
- unsur polonium lan senyawa Highly radioaktif.
- Sawijining logam campuran karo Beryllium menehi sumber neutron.
sumber
Found in Minerals, Mining, Ores saka Minerals
Mining, Ores logam
History
sing katutup
Marc Delafontaine
Pierre Curie and Marie Curie
Discovery
ing taun 1878
ing taun 1898
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-8 %
27
ora Sumadhiya
Turah mbrawah Ing meteorit
0.00 %
99+
ora Sumadhiya
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
38
ora Sumadhiya
Turah mbrawah Ing Segara
0.00 %
99+
0.00 %
99+
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.
- Polonium logam allotropes beda, kang digunakake ing piranti antistatic lan kanggo riset waé.
- A 1 gram saka Polonium bisa tekan suhu 500 ° C, Empu kang digunakake minangka sumber panas kanggo peralatan papan.
Ulah Industrial
NA
Industry Aerospace, Industry amunisi
Ulah Medical
NA
NA
Ulah liyane
wesi, Nuclear Riset
wesi
Properties biologi
keracunan
Low Toxic
Highly Toxic
Saiki ing badan Human
Ora
Ora
Sang
ora Sumadhiya
0.00 Sang / mg dm-3
37
ing Bone
ora Sumadhiya
0.00 ppm
36
fisik Properties
leleh Point
1,461.00 ° C
30
254.00 ° C
99+
Boiling Point
2,600.00 ° C
99+
962.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
Silver
luster
metallic
NA
atose
Brinell atose
746.00 MPa
13
ora Sumadhiya
Vickers atose
481.00 MPa
23
ora Sumadhiya
Kacepetan swara
2,760.00 m / s
30
ora Sumadhiya
Properties Optical
allotropes
Ora
Ya
α allotropes
ora Sumadhiya
α-polonium
β allotropes
ora Sumadhiya
β-polonium
γ allotropes
ora Sumadhiya
ora Sumadhiya
Kimia Properties
Formula Kimia
Ho
Po
isotop
Isotop dikenal
34
5
29
10
keelektronegatifan
Pauling Elektronegativitas
1.23
37
2.00
7
Allred Rochow Elektronegativitas
1.10
30
1.76
2
Mulliken-Jaffe Elektronegativitas
ora Sumadhiya
2.48
1
Allen Elektronegativitas
ora Sumadhiya
2.19
2
Electropositivity
Pauling Electropositivity
2.77
17
2.00
99+
tenogo ionisasi
Level Energy 1st
581.00 kJ / mol
99+
812.10 kJ / mol
14
Level Energy 2
1,140.00 kJ / mol
99+
ora Sumadhiya
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
3.90 g / amp-day
8
Fungsi Work elektron
ora Sumadhiya
ora Sumadhiya
Properties Kimia liyane
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
67
99+
84
32
Konfigurasi elektron
[Xe] 4F 11 6s 2
[Xe] 4F 14 5d 10 6s 2 6p 4
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Pénguapan (Mon)
Crystal pola
HCP-Crystal-Structure-of-Holmium.jpg#100
MON-Crystal-Structure-of-Polonium.jpg#100
atom
Jumlah proton
67
99+
84
32
Jumlah Neutron
98
34
125
19
Jumlah Èlèktron
67
99+
84
32
Radius saka Atom
Radius atom
176.00 pm
18
168.00 pm
23
kovalen Radius
192.00 pm
17
140.00 pm
99+
Van der Waals Radius
216.00 pm
24
197.00 pm
29
Bobot atom
164.93 Amu
99+
209.00 Amu
28
Volume atom
18.70 cm3 / mol
24
22.23 cm3 / mol
13
Nomer atom jejer
Potensi Valence Electron
47.90 (-eV)
31
ora Sumadhiya
Constant pola
357.73 pm
38
335.90 pm
99+
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+
9.20 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
8.34 g / cm3
26
9.40 g / cm3
19
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa)
16
ora Sumadhiya
situs kelenturan
nyukur pengaturan
26.30 GPA
28
ora Sumadhiya
pengaturan akeh
40.20 GPA
32
ora Sumadhiya
Young kang pengaturan
64.80 GPA
31
ora Sumadhiya
Poisson rasio
0.23
29
ora Sumadhiya
Properties Teknik liyane
ductile, malleable, Sectile
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
8.80
35
9.32
31
Nindakake Magnetic
paramagnetic
nonmagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
814.00 nΩ · m
4
0.40 nΩ · m
99+
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.02 10 6 / cm Ω
99+
elektron Affinity
50.00 kJ / mol
21
183.30 kJ / mol
3
termal Properties
Kalor tartamtu
0.16 J / (kg K)
35
0.12 J / (kg K)
40
Graham Kapasitas kalor
27.15 J / mol · K
19
26.40 J / mol · K
28
doyo termal
16.20 W / m · K
99+
20.00 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
11.20 μm / (m · K)
35
23.50 μm / (m · K)
16
enthalpy
Enthalpy panguapan
241.00 kJ / mol
38
60.30 kJ / mol
99+
Enthalpy saka Fusion
11.76 kJ / mol
29
13.00 kJ / mol
26
Enthalpy saka atomization
301.00 kJ / mol
36
134.00 kJ / mol
99+
Standard molar Entropy
75.30 J / mol.K
8
ora Sumadhiya
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