Holmium mungsuh neptunium
Tabel périodik
Symbol
Ho
Np
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
6
7
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
actinide
CAS Number
7440600
29
7439998
99+
Jeneng papan Group
P63 / mmc
Pnma
Space Group Number
194.00
5
62.00
11
facts
Facts Interesting
- metal Holmium sanget alus lan malleable.
- metal Holmium uga dikenal kanggo resistivity sawijining karat.
ora Cepak
sumber
Found in Minerals, Mining, Ores saka Minerals
Digawe dening némbakaké Uranium karo Neutron, Ores logam
History
sing katutup
Marc Delafontaine
Edwin McMillan and Philip H. Abelson
Discovery
ing taun 1878
ing taun 1940
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+
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.
- Efesus saiki dikenal saka logam Neptunium sing winates kanggo riset waé mung.
- Neptunium kang isotop neptunium-237 digunakake minangka neutron detektor.
Ulah Industrial
NA
NA
Ulah Medical
NA
NA
Ulah liyane
wesi, Nuclear Riset
wesi, Nuclear Riset, tujuan Research
Properties biologi
keracunan
Low Toxic
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
640.00 ° C
99+
Boiling Point
2,600.00 ° C
99+
3,902.00 ° C
13
katon
State fisik
Solid
Solid
warna
perak Putih
Silver
luster
metallic
metallic
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
Ora
α allotropes
ora Sumadhiya
ora Sumadhiya
β allotropes
ora Sumadhiya
ora Sumadhiya
γ allotropes
ora Sumadhiya
ora Sumadhiya
Kimia Properties
Formula Kimia
Ho
Np
isotop
Isotop dikenal
34
5
20
19
keelektronegatifan
Pauling Elektronegativitas
1.23
37
1.36
29
Allred Rochow Elektronegativitas
1.10
30
1.22
26
Electropositivity
Pauling Electropositivity
2.77
17
2.64
25
tenogo ionisasi
Level Energy 1st
581.00 kJ / mol
99+
604.50 kJ / mol
99+
Level Energy 2
1,140.00 kJ / mol
99+
1,128.00 kJ / mol
99+
Level Energy 3rd
2,204.00 kJ / mol
99+
1,997.00 kJ / mol
99+
Level Energy 4
4,100.00 kJ / mol
34
3,242.00 kJ / mol
99+
padha karo elektrokimia
2.02 g / amp-day
29
1.77 g / amp-day
39
Fungsi Work elektron
ora Sumadhiya
ora Sumadhiya
Properties Kimia liyane
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
67
99+
93
25
Konfigurasi elektron
[Xe] 4F 11 6s 2
[Rn] 5F 4 6D 1 7s 2
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Orthorhombic (Orth)
Crystal pola
HCP-Crystal-Structure-of-Holmium.jpg#100
ORTH-Crystal-Structure-of-Neptunium.jpg#100
atom
Jumlah proton
67
99+
93
25
Jumlah Neutron
98
34
144
14
Jumlah Èlèktron
67
99+
93
25
Radius saka Atom
Radius atom
176.00 pm
18
155.00 pm
30
kovalen Radius
192.00 pm
17
190.00 pm
18
Van der Waals Radius
216.00 pm
24
221.00 pm
22
Bobot atom
164.93 Amu
99+
237.00 Amu
22
Volume atom
18.70 cm3 / mol
24
11.62 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
47.90 (-eV)
31
96.00 (-eV)
9
Constant pola
357.73 pm
38
666.30 pm
3
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+
19.38 g / cm 3
14
Kapadhetan Nalika Liquid (ing mp)
8.34 g / cm3
26
ora Sumadhiya
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
0.11 (Pa)
17
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
ductile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
8.80
35
20.25
6
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
814.00 nΩ · m
4
1.22 nΩ · m
99+
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.01 10 6 / cm Ω
99+
elektron Affinity
50.00 kJ / mol
21
ora Sumadhiya
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
29.46 J / mol · K
8
doyo termal
16.20 W / m · K
99+
6.30 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
11.20 μm / (m · K)
35
ora Sumadhiya
enthalpy
Enthalpy panguapan
241.00 kJ / mol
38
ora Sumadhiya
Enthalpy saka Fusion
11.76 kJ / mol
29
3.20 kJ / mol
99+
Enthalpy saka atomization
301.00 kJ / mol
36
ora Sumadhiya
Standard molar Entropy
75.30 J / mol.K
8
ora Sumadhiya
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