mbandhingaké Europium lan prometium
Tabel périodik
Symbol
Eu
Pm
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
6
6
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
lanthanide
CAS Number
7440531
34
7440122
99+
Jeneng papan Group
3M Im_
ora Sumadhiya
Space Group Number
229.00
1
ora Sumadhiya
facts
Facts Interesting
ora Cepak
- metal Prometium ditemokaké ing pitchblende.
- Prometium logam logam Highly radioaktif.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining
History
sing katutup
Eugène-Anatole Demarçay
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Discovery
ing taun 1896
ing taun 1942
turah mbrawah
Turah mbrawah Ing Universe
5 * 10-8 %
27
ora Sumadhiya
Turah mbrawah Ing Sun
~0.00000005 %
27
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
99+
ora Sumadhiya
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
36
ora Sumadhiya
Turah mbrawah Ing Segara
0.00 %
99+
ora Sumadhiya
ulah
Ulah lan Wuku
- logam Europium utama Efesus ing printing saka dhuwit kertas Euro. cathetan iki cemlorot abang ing lampu UV.
- Kang digunakake ing bolam lampu kurang energi.
- Kang digunakake kanggo riset waé. jumlah cilik saka logam digunakake ing batre atom.
- bosok radioaktif sawijining digunakake kanggo Phosphor kanggo menehi mati lampu. Lampu cemlorot diowahi dadi listrik.
Ulah Industrial
Industri Kimia
NA
Ulah Medical
NA
NA
Ulah liyane
wesi
NA
Properties biologi
keracunan
non Toxic
non Toxic
Saiki ing badan Human
Ya
Ora
Sang
ora Sumadhiya
0.00 Sang / mg dm-3
37
fisik Properties
leleh Point
822.00 ° C
99+
1,042.00 ° C
99+
Boiling Point
1,597.00 ° C
99+
3,000.00 ° C
31
katon
State fisik
Solid
Solid
warna
perak Putih
Unknown
luster
lustrous
metallic
atose
Vickers atose
167.00 MPa
34
ora Sumadhiya
Kacepetan swara
ora Sumadhiya
ora Sumadhiya
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
Eu
Pm
isotop
Isotop dikenal
31
8
27
12
keelektronegatifan
Pauling Elektronegativitas
1.20
39
ora Sumadhiya
Sanderson Elektronegativitas
1.01
22
ora Sumadhiya
Allred Rochow Elektronegativitas
ora Sumadhiya
1.07
32
Electropositivity
tenogo ionisasi
Level Energy 1st
547.10 kJ / mol
99+
540.00 kJ / mol
99+
Level Energy 2
1,085.00 kJ / mol
99+
1,050.00 kJ / mol
99+
Level Energy 3rd
2,404.00 kJ / mol
99+
2,150.00 kJ / mol
99+
Level Energy 4
4,120.00 kJ / mol
33
3,970.00 kJ / mol
38
padha karo elektrokimia
1.89 g / amp-day
33
1.80 g / amp-day
36
Fungsi Work elektron
2.50 eV
99+
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
63
99+
61
99+
Konfigurasi elektron
[Xe] 4F 7 6s 2
[Xe] 4F 5 6s 2
Struktur Crystal
Body tengah kubik (Bcc)
Double Hexagonal Tutup dikempalken (DHCP)
Crystal pola
BCC-Crystal-Structure-.jpg#100
DHCP-Crystal-Structure-of-Promethium.jpg#100
atom
Jumlah proton
63
99+
61
99+
Jumlah Neutron
89
38
84
40
Jumlah Èlèktron
63
99+
61
99+
Radius saka Atom
Radius atom
180.00 pm
14
183.00 pm
10
kovalen Radius
198.00 pm
13
199.00 pm
12
Van der Waals Radius
233.00 pm
18
236.00 pm
16
Bobot atom
151.96 Amu
99+
145.00 Amu
99+
Volume atom
28.90 cm3 / mol
8
22.39 cm3 / mol
12
Nomer atom jejer
Potensi Valence Electron
45.60 (-eV)
35
44.10 (-eV)
39
Constant pola
458.10 pm
17
ora Sumadhiya
pola Angles
π/2, π/2, π/2
Unknown
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
5.26 g / cm 3
99+
7.26 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
5.13 g / cm3
99+
ora Sumadhiya
Strength tensile
120.00 MPa
15
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
19.40 (Pa)
4
ora Sumadhiya
situs kelenturan
nyukur pengaturan
7.90 GPA
99+
18.00 GPA
36
pengaturan akeh
8.30 GPA
99+
33.00 GPA
36
Young kang pengaturan
18.20 GPA
99+
46.00 GPA
38
Poisson rasio
0.15
34
0.28
17
Properties Teknik liyane
ductile
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
5.24
99+
7.26
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.90 nΩ · m
99+
0.75 nΩ · m
99+
konduktivitas listrik
0.01 10 6 / cm Ω
99+
ora Sumadhiya
elektron Affinity
50.00 kJ / mol
21
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.18 J / (kg K)
33
0.18 J / (kg K)
33
Graham Kapasitas kalor
27.66 J / mol · K
16
ora Sumadhiya
doyo termal
13.90 W / m · K
99+
17.90 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
35.00 μm / (m · K)
8
9.00 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
143.50 kJ / mol
99+
ora Sumadhiya
Enthalpy saka Fusion
9.21 kJ / mol
37
7.50 kJ / mol
99+
Enthalpy saka atomization
180.00 kJ / mol
99+
310.00 kJ / mol
34
Standard molar Entropy
77.80 J / mol.K
4
ora Sumadhiya
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