Praseodymium mungsuh barium
Tabel périodik
Symbol
Pr
Ba
Panggil Group
ora Sumadhiya
2
16
Panggil periode
6
6
Block
pemblokiran f
s pemblokiran
Family unsur
lanthanide
alkalin bumi
CAS Number
7440100
99+
7440393
99+
Jeneng papan Group
P63 / mmc
3M Im_
Space Group Number
194.00
5
229.00
1
facts
Facts Interesting
- Praseodymium logam sintetik diprodhuksi logam.
- Praseodymium digunakake minangka bahan bakar kanggo generator radioaktif.
Character length exceed error
sumber
Found in Minerals, Mining, Ores saka Minerals
bumi lemah ndhuwur, Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Not Available
Carl Wilhelm Scheele
Discovery
ing taun 1885
ing taun 1772
turah mbrawah
Turah mbrawah Ing Universe
2 * 10-7 %
22
1 * 10-6 %
16
Turah mbrawah Ing Sun
~0.0000001 %
26
~0.000001 %
18
Turah mbrawah Ing meteorit
0.00 %
40
0.00 %
20
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
27
0.03 %
11
Turah mbrawah Ing Segara
0.00 %
39
0.00 %
8
Turah mbrawah Ing Manungsa
ora Sumadhiya
0.00 %
12
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.
- Punika digugat ing Manufaktur Paint kimia lan Manufaktur kaca.
- Senyawa saka logam beracun; nanging isih barium sulfat punika insoluble lan diwenehi kanggo patients gerah saka kelainan pencernaan.
Ulah Industrial
Industri Kimia
Industry amunisi, Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi
Properties biologi
keracunan
arep Toxic
Low Toxic
Saiki ing badan Human
Ora
Ya
Sang
ora Sumadhiya
0.07 Sang / mg dm-3
15
ing Bone
ora Sumadhiya
70.00 ppm
9
fisik Properties
leleh Point
935.00 ° C
99+
725.00 ° C
99+
Boiling Point
3,130.00 ° C
27
1,140.00 ° C
99+
katon
State fisik
Solid
Solid
warna
klawu putih
perak Gray
luster
metallic
NA
atose
Mohs atose
ora Sumadhiya
1.25
19
Brinell atose
481.00 MPa
24
ora Sumadhiya
Vickers atose
400.00 MPa
25
ora Sumadhiya
Kacepetan swara
2,280.00 m / s
40
1,620.00 m / s
99+
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
Ba
isotop
Isotop dikenal
31
8
37
2
keelektronegatifan
Pauling Elektronegativitas
1.13
99+
0.89
99+
Sanderson Elektronegativitas
ora Sumadhiya
0.68
28
Allred Rochow Elektronegativitas
1.07
32
0.97
38
Mulliken-Jaffe Elektronegativitas
ora Sumadhiya
0.88
22
Allen Elektronegativitas
ora Sumadhiya
0.88
99+
Electropositivity
Pauling Electropositivity
2.87
12
3.11
4
tenogo ionisasi
Level Energy 1st
527.00 kJ / mol
99+
502.90 kJ / mol
99+
Level Energy 2
1,020.00 kJ / mol
99+
965.20 kJ / mol
99+
Level Energy 3rd
2,086.00 kJ / mol
99+
3,600.00 kJ / mol
14
Level Energy 4
3,761.00 kJ / mol
99+
ora Sumadhiya
Level Energy 5th
5,551.00 kJ / mol
29
ora Sumadhiya
padha karo elektrokimia
1.75 g / amp-day
40
2.56 g / amp-day
20
Fungsi Work elektron
2.70 eV
99+
2.70 eV
99+
Properties Kimia liyane
anti Corrosion, ionisasi, Isotop radioaktif
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
59
99+
56
99+
Konfigurasi elektron
[Xe] 4F 3 6s 2
[Xe] 6s 2
Struktur Crystal
Hexagonal Tutup dikempalken (HCP)
Body tengah kubik (Bcc)
Crystal pola
HCP-Crystal-Structure-of-Praseodymium.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
59
99+
56
99+
Jumlah Neutron
82
99+
81
99+
Jumlah Èlèktron
59
99+
56
99+
Radius saka Atom
Radius atom
182.00 pm
11
222.00 pm
4
kovalen Radius
203.00 pm
9
215.00 pm
5
Van der Waals Radius
239.00 pm
14
268.00 pm
6
Bobot atom
140.91 Amu
99+
137.33 Amu
99+
Volume atom
20.80 cm3 / mol
15
39.24 cm3 / mol
5
Nomer atom jejer
Potensi Valence Electron
42.64 (-eV)
99+
21.30 (-eV)
99+
Constant pola
367.25 pm
29
502.80 pm
15
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
1.61
4
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
6.77 g / cm 3
99+
3.51 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
6.50 g / cm3
39
3.34 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
7.11 (Pa)
6
Meksa beluk ing 2000 K
13.20 (Pa)
7
ora Sumadhiya
situs kelenturan
nyukur pengaturan
14.80 GPA
39
4.90 GPA
99+
pengaturan akeh
28.80 GPA
40
9.60 GPA
99+
Young kang pengaturan
37.30 GPA
99+
13.00 GPA
99+
Poisson rasio
0.28
16
ora Sumadhiya
Properties Teknik liyane
ductile, malleable
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
6.77
99+
3.62
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
superconductor
resistivity
0.70 nΩ · m
99+
332.00 nΩ · m
13
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.03 10 6 / cm Ω
40
elektron Affinity
50.00 kJ / mol
21
13.95 kJ / mol
36
termal Properties
Kalor tartamtu
0.19 J / (kg K)
32
0.20 J / (kg K)
30
Graham Kapasitas kalor
27.20 J / mol · K
18
28.07 J / mol · K
12
doyo termal
12.50 W / m · K
99+
18.40 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
6.70 μm / (m · K)
99+
20.60 μm / (m · K)
22
enthalpy
Enthalpy panguapan
296.80 kJ / mol
29
140.00 kJ / mol
99+
Enthalpy saka Fusion
6.89 kJ / mol
99+
7.66 kJ / mol
99+
Enthalpy saka atomization
368.00 kJ / mol
24
175.70 kJ / mol
99+
Standard molar Entropy
73.20 J / mol.K
10
62.50 J / mol.K
20
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