Symbol
Pr
Cs
Panggil Group
31
0
17
👆🏻
Panggil periode
66
2
7
👆🏻
Block
pemblokiran f
s pemblokiran
Family unsur
lanthanide
alkali
CAS Number
74401007440462
7429905
54386242
👆🏻
Jeneng papan Group
P63 / mmc
3M Im_
Space Group Number
194.00229.00
11
276
👆🏻
Facts Interesting
- Praseodymium logam sintetik diprodhuksi logam.
- Praseodymium digunakake minangka bahan bakar kanggo generator radioaktif.
Cesium minangka logam paling alkalin lan digunakake ing jam atom.
sumber
Found in Minerals, Mining, Ores saka Minerals
bumi lemah ndhuwur, Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
-
Robert Bunsen and Gustav Kirchhoff
Discovery
ing taun 1885
ing taun 1860
turah mbrawah
Turah mbrawah Ing Universe
0.00 %0.00 %
0
0.11
👆🏻
Turah mbrawah Ing Sun
0.00 %0.00 %
0
0.1
👆🏻
Turah mbrawah Ing meteorit
0.00 %0.00 %
0
22
👆🏻
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %0.00 %
1E-37
8.1
👆🏻
Turah mbrawah Ing Segara
0.00 %0.00 %
0
1.1
👆🏻
Turah mbrawah Ing Manungsa
0.00 %0.00 %
0
1.4
👆🏻
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.
- nggunakake paling umum saka logam Sesium yaiku adi ngebur. Sampeyan uga dipigunakaké ing Manufaktur kaca optik.
- Ing tabung vakum lan peralatan monitor radiation logam iki digunakake minangka katalis tukang promosi.
Ulah Industrial
Industri Kimia
Industry Aerospace, Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
-
-
Ulah liyane
wesi
wesi
Properties biologi
keracunan
arep Toxic
mildly Toxic
Saiki ing badan Human
Ora
Ya
Sang
0.00 Sang / mg dm-30.00 Sang / mg dm-3
0
1970
👆🏻
ing Bone
0.00 ppm0.05 ppm
0
170000
👆🏻
leleh Point
935.00 ° C28.50 ° C
-38.83
3410
👆🏻
Boiling Point
3,130.00 ° C678.40 ° C
0
5660
👆🏻
katon
State fisik
Solid
Solid
warna
klawu putih
Gold perak
luster
metallic
-
atose
Mohs atose
4.000.20
0.2
8.5
👆🏻
Brinell atose
481.00 MPa0.14 MPa
0.14
3490
👆🏻
Vickers atose
400.00 MPa0.14 MPa
0
3920
👆🏻
Kacepetan swara
2,280.00 m / s1,630.00 m / s
818
16200
👆🏻
Properties Optical
bias Index
1.641.93
0.155
3.41
👆🏻
reflectivity
60.00 %35.00 %
5
97
👆🏻
allotropes
Ora
Ora
α allotropes
-
-
β allotropes
-
-
γ allotropes
-
-
Formula Kimia
Pr
Cs
isotop
Isotop dikenal
3136
0
38
👆🏻
keelektronegatifan
Pauling Elektronegativitas
1.130.79
0
2.6
👆🏻
Sanderson Elektronegativitas
1.130.22
0.22
2.56
👆🏻
Allred Rochow Elektronegativitas
1.070.86
0.86
1.9
👆🏻
Mulliken-Jaffe Elektronegativitas
1.130.62
0.62
2.48
👆🏻
Allen Elektronegativitas
1.130.66
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
2.873.21
1.46
3.3
👆🏻
tenogo ionisasi
Level Energy 1st
527.00 kJ / mol375.70 kJ / mol
375.7
26130
👆🏻
Level Energy 2
1,020.00 kJ / mol2,234.30 kJ / mol
392.8
28750
👆🏻
Level Energy 3rd
2,086.00 kJ / mol3,400.00 kJ / mol
392.8
34230
👆🏻
Level Energy 4
3,761.00 kJ / mol375.70 kJ / mol
375.7
37066
👆🏻
Level Energy 5th
5,551.00 kJ / mol3,750.00 kJ / mol
392
97510
👆🏻
Level Energy 6th
5,270.00 kJ / mol3,750.00 kJ / mol
1007
105800
👆🏻
tingkat Energy 7
5,270.00 kJ / mol3,750.00 kJ / mol
1007
114300
👆🏻
Level Energy 8
5,270.00 kJ / mol3,760.00 kJ / mol
730
125300
👆🏻
Level Energy 9
5,270.00 kJ / mol3,750.00 kJ / mol
1007
134700
👆🏻
Level Energy 10th
5,270.00 kJ / mol3,757.00 kJ / mol
392
144300
👆🏻
Level Energy 11
5,274.00 kJ / mol3,757.00 kJ / mol
392
169988
👆🏻
Level Energy 12
5,270.00 kJ / mol3,750.00 kJ / mol
0
189368
👆🏻
Level Energy 13
5,270.00 kJ / mol3,750.00 kJ / mol
1007
76015
👆🏻
Level Energy 14
5,270.00 kJ / mol3,750.00 kJ / mol
380
86450
👆🏻
Level Energy 15
52,700.00 kJ / mol37,500.00 kJ / mol
33000
100700
👆🏻
Level Energy 16
52,700.00 kJ / mol375.70 kJ / mol
375.7
109480
👆🏻
Level Energy 17
527.30 kJ / mol375.70 kJ / mol
375.7
122200
👆🏻
Level Energy 18
5,270.00 kJ / mol3,757.00 kJ / mol
0
134810
👆🏻
Level Energy 19
527.30 kJ / mol375.70 kJ / mol
375.7
148700
👆🏻
Level Energy 20
527.00 kJ / mol375.00 kJ / mol
0
171200
👆🏻
Level Energy 21
527.00 kJ / mol375.70 kJ / mol
375.7
179100
👆🏻
Level Energy 22
527.00 kJ / mol375.00 kJ / mol
330
184900
👆🏻
Level Energy 23rd
527.00 kJ / mol375.70 kJ / mol
357.6
198800
👆🏻
Level Energy 24
527.40 kJ / mol375.70 kJ / mol
297.3
195200
👆🏻
Level Energy 25th
527.00 kJ / mol375.70 kJ / mol
0
121900
👆🏻
Level Energy 26th
527.40 kJ / mol375.70 kJ / mol
357.6
127700
👆🏻
Level Energy 27th
527.40 kJ / mol375.70 kJ / mol
0
133800
👆🏻
Level Energy 28th
527.40 kJ / mol375.70 kJ / mol
297.3
139800
👆🏻
Level Energy 29
527.00 kJ / mol375.70 kJ / mol
0
148100
👆🏻
Level Energy 30
527.00 kJ / mol375.70 kJ / mol
0
154500
👆🏻
padha karo elektrokimia
1.75 g / amp-day4.96 g / amp-day
0.16812
8.3209
👆🏻
Fungsi Work elektron
2.70 eV2.14 eV
2.14
6
👆🏻
Properties Kimia liyane
anti Corrosion, ionisasi, Isotop radioaktif
Kimia Stabilitas, Corrosion, ionisasi, Isotop radioaktif, kelarutan
Panggil atom
5955
3
117
👆🏻
Konfigurasi elektron
[Xe] 4F 3 6s 2
[Xe] 6s 1
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Body tengah kubik (Bcc)
Crystal pola
atom
Jumlah proton
5955
3
117
👆🏻
Jumlah Neutron
8278
4
285
👆🏻
Jumlah Èlèktron
5955
3
117
👆🏻
Radius saka Atom
Radius atom
182.00 pm265.00 pm
0
348
👆🏻
kovalen Radius
203.00 pm244.00 pm
0
260
👆🏻
Van der Waals Radius
239.00 pm343.00 pm
0
348
👆🏻
Bobot atom
140.91 Amu132.91 Amu
6.94
294
👆🏻
Volume atom
20.80 cm3 / mol71.07 cm3 / mol
1.39
71.07
👆🏻
Nomer atom jejer
unsur Previous
Sabanjure unsur
Potensi Valence Electron
42.64 (-eV)8.62 (-eV)
0
392.42
👆🏻
Constant pola
367.25 pm614.10 pm
0
891.25
👆🏻
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
1.611.87
0.423
1.9
👆🏻
Kapadhetan
Kapadhetan Ing suhu kamar
6.77 g / cm 31.93 g / cm 3
0.534
40.7
👆🏻
Kapadhetan Nalika Liquid (ing mp)
6.50 g / cm31.84 g / cm3
0.512
41
👆🏻
Strength tensile
55.00 MPa15.00 MPa
0.1
11000
👆🏻
viskositas
0.000.00
1.5E-05
0.0035
👆🏻
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa)0.00 (Pa)
0
121
👆🏻
Meksa beluk ing 2000 K
13.20 (Pa)0.00 (Pa)
0
774
👆🏻
situs kelenturan
nyukur pengaturan
14.80 GPA30.00 GPA
1.3
222
👆🏻
pengaturan akeh
28.80 GPA1.60 GPA
0
462
👆🏻
Young kang pengaturan
37.30 GPA1.70 GPA
0
528
👆🏻
Poisson rasio
0.280.35
0.032
0.47
👆🏻
Properties Teknik liyane
ductile, malleable
ductile
Ciri Magnetic
Gravitasi tartamtu
6.771.87
0.53
4500
👆🏻
Nindakake Magnetic
paramagnetic
paramagnetic
permeabilitas
0.00 H / m0.00 H / m
1.25643E-06
0.0063
👆🏻
kelemahan
0.000.00
-0.000166
200000
👆🏻
Properties Listrik
Property Listrik
Arman
Semiconductor
resistivity
0.70 nΩ · m205.00 nΩ · m
0.1
961
👆🏻
konduktivitas listrik
0.01 10 6 / cm Ω0.05 10 6 / cm Ω
0
0.63
👆🏻
elektron Affinity
50.00 kJ / mol45.50 kJ / mol
0
222.8
👆🏻
Kalor tartamtu
0.19 J / (kg K)0.24 J / (kg K)
0.1
3.6
👆🏻
Graham Kapasitas kalor
27.20 J / mol · K32.21 J / mol · K
13.1
62.7
👆🏻
doyo termal
12.50 W / m · K35.90 W / m · K
0
429
👆🏻
suhu kritis
1,208.00 K1,938.00 K
26.3
3695
👆🏻
Expansion termal
6.70 μm / (m · K)97.00 μm / (m · K)
4.5
97
👆🏻
enthalpy
Enthalpy panguapan
296.80 kJ / mol65.90 kJ / mol
7.32
799.1
👆🏻
Enthalpy saka Fusion
6.89 kJ / mol2.10 kJ / mol
2.1
35.23
👆🏻
Enthalpy saka atomization
368.00 kJ / mol78.20 kJ / mol
61.5
837
👆🏻
Standard molar Entropy
73.20 J / mol.K85.20 J / mol.K
9.5
198.1
👆🏻