prometium mungsuh sesium
Tabel périodik
Symbol
Pm
Cs
Panggil Group
ora Sumadhiya
1
17
Panggil periode
6
6
Block
pemblokiran f
s pemblokiran
Family unsur
lanthanide
alkali
CAS Number
7440122
99+
7440462
40
Jeneng papan Group
ora Sumadhiya
3M Im_
Space Group Number
ora Sumadhiya
229.00
1
facts
Facts Interesting
- metal Prometium ditemokaké ing pitchblende.
- Prometium logam logam Highly radioaktif.
ora Cepak
sumber
Found in Minerals, Mining
bumi lemah ndhuwur, Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Robert Bunsen and Gustav Kirchhoff
Discovery
ing taun 1942
ing taun 1860
turah mbrawah
Turah mbrawah Ing Universe
ora Sumadhiya
8 * 10-8 %
24
Turah mbrawah Ing Sun
~-9999 %
~0.0000008 %
20
Turah mbrawah Ing meteorit
ora Sumadhiya
0.00 %
38
Turah mbrawah Ing bumi lemah ndhuwur
ora Sumadhiya
0.00 %
35
Turah mbrawah Ing Segara
ora Sumadhiya
0.00 %
17
Turah mbrawah Ing Manungsa
ora Sumadhiya
0.00 %
17
ulah
Ulah lan Wuku
- 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.
- 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
NA
Industry Aerospace, Industry automobile, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
NA
wesi
Properties biologi
keracunan
non Toxic
mildly Toxic
Saiki ing badan Human
Ora
Ya
Sang
0.00 Sang / mg dm-3
37
0.00 Sang / mg dm-3
28
ing Bone
ora Sumadhiya
0.05 ppm
26
fisik Properties
leleh Point
1,042.00 ° C
99+
28.50 ° C
99+
Boiling Point
3,000.00 ° C
31
678.40 ° C
99+
katon
State fisik
Solid
Solid
warna
Unknown
Gold perak
luster
metallic
NA
atose
Mohs atose
ora Sumadhiya
0.20
25
Brinell atose
ora Sumadhiya
0.14 MPa
99+
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
Pm
Cs
isotop
Isotop dikenal
27
12
36
3
keelektronegatifan
Pauling Elektronegativitas
ora Sumadhiya
0.79
99+
Sanderson Elektronegativitas
ora Sumadhiya
0.22
33
Allred Rochow Elektronegativitas
1.07
32
0.86
99+
Mulliken-Jaffe Elektronegativitas
ora Sumadhiya
0.62
26
Allen Elektronegativitas
ora Sumadhiya
0.66
99+
Electropositivity
Pauling Electropositivity
ora Sumadhiya
3.21
2
tenogo ionisasi
Level Energy 1st
540.00 kJ / mol
99+
375.70 kJ / mol
99+
Level Energy 2
1,050.00 kJ / mol
99+
2,234.30 kJ / mol
8
Level Energy 3rd
2,150.00 kJ / mol
99+
3,400.00 kJ / mol
16
Level Energy 4
3,970.00 kJ / mol
38
ora Sumadhiya
padha karo elektrokimia
1.80 g / amp-day
36
4.96 g / amp-day
3
Fungsi Work elektron
ora Sumadhiya
2.14 eV
99+
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
Kimia Stabilitas, Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
61
99+
55
99+
Konfigurasi elektron
[Xe] 4F 5 6s 2
[Xe] 6s 1
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Body tengah kubik (Bcc)
Crystal pola
DHCP-Crystal-Structure-of-Promethium.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
61
99+
55
99+
Jumlah Neutron
84
40
78
99+
Jumlah Èlèktron
61
99+
55
99+
Radius saka Atom
Radius atom
183.00 pm
10
265.00 pm
1
kovalen Radius
199.00 pm
12
244.00 pm
2
Van der Waals Radius
236.00 pm
16
343.00 pm
2
Bobot atom
145.00 Amu
99+
132.91 Amu
99+
Volume atom
22.39 cm3 / mol
12
71.07 cm3 / mol
1
Nomer atom jejer
Potensi Valence Electron
44.10 (-eV)
39
8.62 (-eV)
99+
Constant pola
ora Sumadhiya
614.10 pm
5
pola Angles
Unknown
π/2, π/2, π/2
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
7.26 g / cm 3
99+
1.93 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya
1.84 g / cm3
99+
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
situs kelenturan
nyukur pengaturan
18.00 GPA
36
ora Sumadhiya
pengaturan akeh
33.00 GPA
36
1.60 GPA
99+
Young kang pengaturan
46.00 GPA
38
1.70 GPA
99+
Poisson rasio
0.28
17
ora Sumadhiya
Properties Teknik liyane
NA
ductile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
7.26
99+
1.87
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Semiconductor
resistivity
0.75 nΩ · m
99+
205.00 nΩ · m
17
konduktivitas listrik
ora Sumadhiya
0.05 10 6 / cm Ω
35
elektron Affinity
50.00 kJ / mol
21
45.50 kJ / mol
25
termal Properties
Kalor tartamtu
0.18 J / (kg K)
33
0.24 J / (kg K)
23
Graham Kapasitas kalor
ora Sumadhiya
32.21 J / mol · K
4
doyo termal
17.90 W / m · K
99+
35.90 W / m · K
36
suhu kritis
ora Sumadhiya
1,938.00 K
5
Expansion termal
9.00 μm / (m · K)
99+
97.00 μm / (m · K)
1
enthalpy
Enthalpy panguapan
ora Sumadhiya
65.90 kJ / mol
99+
Enthalpy saka Fusion
7.50 kJ / mol
99+
2.10 kJ / mol
99+
Enthalpy saka atomization
310.00 kJ / mol
34
78.20 kJ / mol
99+
Standard molar Entropy
ora Sumadhiya
85.20 J / mol.K
3
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