Praseodymium mungsuh lanthanum
Tabel périodik
Symbol
Pr
La
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
6
6
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
lanthanide
CAS Number
7440100
99+
7439910
99+
Jeneng papan Group
P63 / mmc
P63 / mmc
Space Group Number
194.00
5
194.00
5
facts
Facts Interesting
- Praseodymium logam sintetik diprodhuksi logam.
- Praseodymium digunakake minangka bahan bakar kanggo generator radioaktif.
- Lanthanum logam punika Highly malleable, ductile lan sectile.
- Yen kapapar logam Lanthanum online oxidizes kanthi cepet.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Not Available
Carl Gustaf Mosander
Discovery
ing taun 1885
Wonten ing taun 1838
turah mbrawah
Turah mbrawah Ing Universe
2 * 10-7 %
22
2 * 10-7 %
22
Turah mbrawah Ing Sun
~0.0000001 %
26
~0.0000002 %
25
Turah mbrawah Ing meteorit
0.00 %
40
0.00 %
32
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
27
0.00 %
19
Turah mbrawah Ing Segara
0.00 %
39
0.00 %
29
ulah
Ulah lan Wuku
- Gunakake utama Praseodymium kalebu wesi. Praseodymium -Magnesium alloy digunakake ing mesin pesawat amarga kekuatan dhuwur.
- metal iki uga digunakake nalika nggawe wesi sembrani permanen.
Character length exceed error
Ulah Industrial
Industri Kimia
Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi, Manufacturing mirror
Properties biologi
keracunan
arep Toxic
Low Toxic
Saiki ing badan Human
Ora
Ya
ing Bone
ora Sumadhiya
0.08 ppm
24
fisik Properties
leleh Point
935.00 ° C
99+
920.00 ° C
99+
Boiling Point
3,130.00 ° C
27
3,469.00 ° C
18
katon
State fisik
Solid
Solid
warna
klawu putih
perak Putih
luster
metallic
NA
atose
Mohs atose
ora Sumadhiya
2.50
14
Brinell atose
481.00 MPa
24
350.00 MPa
30
Vickers atose
400.00 MPa
25
360.00 MPa
26
Kacepetan swara
2,280.00 m / s
40
2,475.00 m / s
37
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
Pr
La
isotop
Isotop dikenal
31
8
31
8
keelektronegatifan
Pauling Elektronegativitas
1.13
99+
1.10
99+
Allred Rochow Elektronegativitas
1.07
32
1.08
31
Electropositivity
Pauling Electropositivity
2.87
12
2.90
10
tenogo ionisasi
Level Energy 1st
527.00 kJ / mol
99+
538.10 kJ / mol
99+
Level Energy 2
1,020.00 kJ / mol
99+
1,067.00 kJ / mol
99+
Level Energy 3rd
2,086.00 kJ / mol
99+
1,850.30 kJ / mol
99+
Level Energy 4
3,761.00 kJ / mol
99+
4,819.00 kJ / mol
22
Level Energy 5th
5,551.00 kJ / mol
29
5,940.00 kJ / mol
25
padha karo elektrokimia
1.75 g / amp-day
40
1.73 g / amp-day
99+
Fungsi Work elektron
2.70 eV
99+
3.50 eV
31
Properties Kimia liyane
anti Corrosion, ionisasi, Isotop radioaktif
ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
59
99+
57
99+
Konfigurasi elektron
[Xe] 4F 3 6s 2
[Xe] 5d 2 6s 2
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Double Hexagonal Tutup dikempalken (DHCP)
Crystal pola
HCP-Crystal-Structure-of-Praseodymium.jpg#100
DHCP-Crystal-Structure-of-Lanthanum.jpg#100
atom
Jumlah proton
59
99+
57
99+
Jumlah Neutron
82
99+
82
99+
Jumlah Èlèktron
59
99+
57
99+
Radius saka Atom
Radius atom
182.00 pm
11
187.00 pm
8
kovalen Radius
203.00 pm
9
207.00 pm
6
Van der Waals Radius
239.00 pm
14
240.00 pm
13
Bobot atom
140.91 Amu
99+
138.91 Amu
99+
Volume atom
20.80 cm3 / mol
15
20.73 cm3 / mol
16
Nomer atom jejer
Potensi Valence Electron
42.64 (-eV)
99+
40.71 (-eV)
99+
Constant pola
367.25 pm
29
377.20 pm
28
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Pola C / A rasio
1.61
4
1.62
2
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
6.77 g / cm 3
99+
6.16 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
6.50 g / cm3
39
5.94 g / cm3
99+
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa)
25
ora Sumadhiya
Meksa beluk ing 2000 K
13.20 (Pa)
7
0.98 (Pa)
15
situs kelenturan
nyukur pengaturan
14.80 GPA
39
14.30 GPA
40
pengaturan akeh
28.80 GPA
40
27.90 GPA
99+
Young kang pengaturan
37.30 GPA
99+
36.60 GPA
99+
Poisson rasio
0.28
16
0.28
17
Properties Teknik liyane
ductile, malleable
ductile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
6.77
99+
6.17
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.70 nΩ · m
99+
615.00 nΩ · m
7
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.01 10 6 / cm Ω
99+
elektron Affinity
50.00 kJ / mol
21
48.00 kJ / mol
23
termal Properties
Kalor tartamtu
0.19 J / (kg K)
32
0.19 J / (kg K)
32
Graham Kapasitas kalor
27.20 J / mol · K
18
27.11 J / mol · K
21
doyo termal
12.50 W / m · K
99+
13.40 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
6.70 μm / (m · K)
99+
12.10 μm / (m · K)
32
enthalpy
Enthalpy panguapan
296.80 kJ / mol
29
399.60 kJ / mol
17
Enthalpy saka Fusion
6.89 kJ / mol
99+
6.20 kJ / mol
99+
Enthalpy saka atomization
368.00 kJ / mol
24
431.00 kJ / mol
16
Standard molar Entropy
73.20 J / mol.K
10
56.90 J / mol.K
23
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