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Praseodymium metal
Praseodymium


Tabel périodik
Symbol
Pr
Panggil Group
3 15
Panggil periode
6 2
Block
pemblokiran f
Family unsur
lanthanide
CAS Number
7440100 69
Jeneng papan Group
P63 / mmc
Space Group Number
194.00 7
facts
Facts Interesting
  • Praseodymium logam sintetik diprodhuksi logam.
  • Praseodymium digunakake minangka bahan bakar kanggo generator radioaktif.
sumber
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
-
Discovery
ing taun 1885
turah mbrawah
Turah mbrawah Ing Universe
0.00 % 23
Turah mbrawah Ing Sun
0.00 % 26
Turah mbrawah Ing meteorit
0.00 % 40
Turah mbrawah Ing bumi lemah ndhuwur
0.00 % 27
Turah mbrawah Ing Segara
0.00 % 39
Turah mbrawah Ing Manungsa
0.00 % 24
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.
Ulah Industrial
Industri Kimia
Ulah Medical
-
Ulah liyane
wesi
Properties biologi
keracunan
arep Toxic
Saiki ing badan Human
Ora
Sang
0.00 Sang / mg dm-3 33
ing Bone
0.00 ppm 41
fisik
leleh Point
935.00 ° C 48
Boiling Point
3,130.00 ° C 28
katon
State fisik
Solid
warna
klawu putih
luster
metallic
atose
Mohs atose
4.00 11
Brinell atose
481.00 MPa 29
Vickers atose
400.00 MPa 41
Kacepetan swara
2,280.00 m / s 57
Properties Optical
bias Index
1.64 30
reflectivity
60.00 % 23
allotropes
Ora
α allotropes
-
β allotropes
-
γ allotropes
-
Kimia
Formula Kimia
Pr
isotop
Isotop dikenal
31 8
keelektronegatifan
Pauling Elektronegativitas
1.13 43
Sanderson Elektronegativitas
1.13 36
Allred Rochow Elektronegativitas
1.07 33
Mulliken-Jaffe Elektronegativitas
1.13 42
Allen Elektronegativitas
1.13 53
Electropositivity
Pauling Electropositivity
2.87 12
tenogo ionisasi
Level Energy 1st
527.00 kJ / mol 78
Level Energy 2
1,020.00 kJ / mol 81
Level Energy 3rd
2,086.00 kJ / mol 73
Level Energy 4
3,761.00 kJ / mol 57
Level Energy 5th
5,551.00 kJ / mol 63
Level Energy 6th
5,270.00 kJ / mol 82
tingkat Energy 7
5,270.00 kJ / mol 74
Level Energy 8
5,270.00 kJ / mol 73
Level Energy 9
5,270.00 kJ / mol 72
Level Energy 10th
5,270.00 kJ / mol 70
Level Energy 11
5,274.00 kJ / mol 75
Level Energy 12
5,270.00 kJ / mol 78
Level Energy 13
5,270.00 kJ / mol 68
Level Energy 14
5,270.00 kJ / mol 53
Level Energy 15
52,700.00 kJ / mol 67
Level Energy 16
52,700.00 kJ / mol 54
Level Energy 17
527.30 kJ / mol 83
Level Energy 18
5,270.00 kJ / mol 69
Level Energy 19
527.30 kJ / mol 82
Level Energy 20
527.00 kJ / mol 72
Level Energy 21
527.00 kJ / mol 82
Level Energy 22
527.00 kJ / mol 66
Level Energy 23rd
527.00 kJ / mol 79
Level Energy 24
527.40 kJ / mol 78
Level Energy 25th
527.00 kJ / mol 70
Level Energy 26th
527.40 kJ / mol 78
Level Energy 27th
527.40 kJ / mol 73
Level Energy 28th
527.40 kJ / mol 76
Level Energy 29
527.00 kJ / mol 79
Level Energy 30
527.00 kJ / mol 73
padha karo elektrokimia
1.75 g / amp-day 44
Fungsi Work elektron
2.70 eV 52
Properties Kimia liyane
anti Corrosion, ionisasi, Isotop radioaktif
atom
Panggil atom
59 57
Konfigurasi elektron
[Xe] 4F 3 6s 2
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Crystal pola
HCP-Crystal-Structure-of-Praseodymium.jpg#100
atom
Jumlah proton
59 56
Jumlah Neutron
82 42
Jumlah Èlèktron
59 56
Radius saka Atom
Radius atom
182.00 pm 13
kovalen Radius
203.00 pm 9
Van der Waals Radius
239.00 pm 18
Bobot atom
140.91 Amu 51
Volume atom
20.80 cm3 / mol 25
Nomer atom jejer
unsur Previous
49
Sabanjure unsur
13
Potensi Valence Electron
42.64 (-eV) 43
Constant pola
367.25 pm 32
pola Angles
π/2, π/2, 2 π/3
Pola C / A rasio
1.61 18
Teknik
Kapadhetan
Kapadhetan Ing suhu kamar
6.77 g / cm 3 68
Kapadhetan Nalika Liquid (ing mp)
6.50 g / cm3 68
Strength tensile
55.00 MPa 37
viskositas
0.00 25
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa) 27
Meksa beluk ing 2000 K
13.20 (Pa) 7
situs kelenturan
nyukur pengaturan
14.80 GPA 50
pengaturan akeh
28.80 GPA 51
Young kang pengaturan
37.30 GPA 46
Poisson rasio
0.28 16
Properties Teknik liyane
ductile, malleable
Magnetic
Ciri Magnetic
Gravitasi tartamtu
6.77 66
Nindakake Magnetic
paramagnetic
permeabilitas
0.00 H / m 12
kelemahan
0.00 19
Properties Listrik
Property Listrik
Arman
resistivity
0.70 nΩ · m 77
konduktivitas listrik
0.01 10 6 / cm Ω 55
elektron Affinity
50.00 kJ / mol 26
termal
Kalor tartamtu
0.19 J / (kg K) 33
Graham Kapasitas kalor
27.20 J / mol · K 24
doyo termal
12.50 W / m · K 61
suhu kritis
1,208.00 K 51
Expansion termal
6.70 μm / (m · K) 65
enthalpy
Enthalpy panguapan
296.80 kJ / mol 47
Enthalpy saka Fusion
6.89 kJ / mol 55
Enthalpy saka atomization
368.00 kJ / mol 33
Standard molar Entropy
73.20 J / mol.K 10
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