neptunium mungsuh Praseodymium
Tabel périodik
Symbol
Np
Pr
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
7
6
Block
pemblokiran f
pemblokiran f
Family unsur
actinide
lanthanide
CAS Number
7439998
99+
7440100
99+
Jeneng papan Group
Pnma
P63 / mmc
Space Group Number
62.00
11
194.00
5
facts
Facts Interesting
ora Cepak
- Praseodymium logam sintetik diprodhuksi logam.
- Praseodymium digunakake minangka bahan bakar kanggo generator radioaktif.
sumber
Digawe dening némbakaké Uranium karo Neutron, Ores logam
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Edwin McMillan and Philip H. Abelson
Not Available
Discovery
ing taun 1940
ing taun 1885
turah mbrawah
Turah mbrawah Ing Universe
ora Sumadhiya
2 * 10-7 %
22
Turah mbrawah Ing Sun
~-9999 %
~0.0000001 %
26
Turah mbrawah Ing meteorit
ora Sumadhiya
0.00 %
40
Turah mbrawah Ing bumi lemah ndhuwur
ora Sumadhiya
0.00 %
27
Turah mbrawah Ing Segara
ora Sumadhiya
0.00 %
39
ulah
Ulah lan Wuku
- Efesus saiki dikenal saka logam Neptunium sing winates kanggo riset waé mung.
- Neptunium kang isotop neptunium-237 digunakake minangka neutron detektor.
- Gunakake utama Praseodymium kalebu wesi. Praseodymium -Magnesium alloy digunakake ing mesin pesawat amarga kekuatan dhuwur.
- metal iki uga digunakake nalika nggawe wesi sembrani permanen.
Ulah Industrial
NA
Industri Kimia
Ulah Medical
NA
NA
Ulah liyane
wesi, Nuclear Riset, tujuan Research
wesi
Properties biologi
keracunan
Toxic
arep Toxic
Saiki ing badan Human
Ora
Ora
Sang
0.00 Sang / mg dm-3
37
ora Sumadhiya
ing Bone
0.00 ppm
36
ora Sumadhiya
fisik Properties
leleh Point
640.00 ° C
99+
935.00 ° C
99+
Boiling Point
3,902.00 ° C
13
3,130.00 ° C
27
katon
State fisik
Solid
Solid
warna
Silver
klawu putih
luster
metallic
metallic
atose
Brinell atose
ora Sumadhiya
481.00 MPa
24
Vickers atose
ora Sumadhiya
400.00 MPa
25
Kacepetan swara
ora Sumadhiya
2,280.00 m / s
40
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
Np
Pr
isotop
Isotop dikenal
20
19
31
8
keelektronegatifan
Pauling Elektronegativitas
1.36
29
1.13
99+
Allred Rochow Elektronegativitas
1.22
26
1.07
32
Electropositivity
Pauling Electropositivity
2.64
25
2.87
12
tenogo ionisasi
Level Energy 1st
604.50 kJ / mol
99+
527.00 kJ / mol
99+
Level Energy 2
1,128.00 kJ / mol
99+
1,020.00 kJ / mol
99+
Level Energy 3rd
1,997.00 kJ / mol
99+
2,086.00 kJ / mol
99+
Level Energy 4
3,242.00 kJ / mol
99+
3,761.00 kJ / mol
99+
Level Energy 5th
ora Sumadhiya
5,551.00 kJ / mol
29
padha karo elektrokimia
1.77 g / amp-day
39
1.75 g / amp-day
40
Fungsi Work elektron
ora Sumadhiya
2.70 eV
99+
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
anti Corrosion, ionisasi, Isotop radioaktif
atom Properties
Panggil atom
93
25
59
99+
Konfigurasi elektron
[Rn] 5F 4 6D 1 7s 2
[Xe] 4F 3 6s 2
Struktur Crystal
Orthorhombic (Orth)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
ORTH-Crystal-Structure-of-Neptunium.jpg#100
HCP-Crystal-Structure-of-Praseodymium.jpg#100
atom
Jumlah proton
93
25
59
99+
Jumlah Neutron
144
14
82
99+
Jumlah Èlèktron
93
25
59
99+
Radius saka Atom
Radius atom
155.00 pm
30
182.00 pm
11
kovalen Radius
190.00 pm
18
203.00 pm
9
Van der Waals Radius
221.00 pm
22
239.00 pm
14
Bobot atom
237.00 Amu
22
140.91 Amu
99+
Volume atom
11.62 cm3 / mol
99+
20.80 cm3 / mol
15
Nomer atom jejer
Potensi Valence Electron
96.00 (-eV)
9
42.64 (-eV)
99+
Constant pola
666.30 pm
3
367.25 pm
29
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
1.61
4
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
19.38 g / cm 3
14
6.77 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya
6.50 g / cm3
39
Strength tensile
125.00 MPa
14
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
ora Sumadhiya
0.00 (Pa)
25
Meksa beluk ing 2000 K
0.11 (Pa)
17
13.20 (Pa)
7
situs kelenturan
nyukur pengaturan
ora Sumadhiya
14.80 GPA
39
pengaturan akeh
ora Sumadhiya
28.80 GPA
40
Young kang pengaturan
ora Sumadhiya
37.30 GPA
99+
Poisson rasio
ora Sumadhiya
0.28
16
Properties Teknik liyane
ductile
ductile, malleable
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
20.25
6
6.77
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
1.22 nΩ · m
99+
0.70 nΩ · m
99+
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.01 10 6 / cm Ω
99+
elektron Affinity
ora Sumadhiya
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
0.19 J / (kg K)
32
Graham Kapasitas kalor
29.46 J / mol · K
8
27.20 J / mol · K
18
doyo termal
6.30 W / m · K
99+
12.50 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
ora Sumadhiya
6.70 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
ora Sumadhiya
296.80 kJ / mol
29
Enthalpy saka Fusion
3.20 kJ / mol
99+
6.89 kJ / mol
99+
Enthalpy saka atomization
ora Sumadhiya
368.00 kJ / mol
24
Standard molar Entropy
ora Sumadhiya
73.20 J / mol.K
10
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