berkelium mungsuh prometium
Tabel périodik
Symbol
Bk
Pm
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
7
6
Block
pemblokiran f
pemblokiran f
Family unsur
actinide
lanthanide
CAS Number
7440406
99+
7440122
99+
Jeneng papan Group
P63 / mmc
ora Sumadhiya
Space Group Number
194.00
5
ora Sumadhiya
facts
Facts Interesting
- X-ray Diffraction- senyawa sing beda saka logam Berkelium sing dikenali nggunakake.
- komersial saka logam Berkelium sing durung ditemokake.
- metal Prometium ditemokaké ing pitchblende.
- Prometium logam logam Highly radioaktif.
sumber
Némbakaké Americium karo Alpha partikel.
Found in Minerals, Mining
History
sing katutup
Lawrence Berkeley National Laboratory
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Discovery
ing taun 1949
ing taun 1942
turah mbrawah
ulah
Ulah lan Wuku
- logam iki arang banget lan wis ora komersial.
- 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
NA
NA
Ulah Medical
NA
NA
Ulah liyane
NA
NA
Properties biologi
keracunan
Unknown
non Toxic
Saiki ing badan Human
Ora
Ora
Sang
0.00 Sang / mg dm-3
37
0.00 Sang / mg dm-3
37
ing Bone
0.00 ppm
36
ora Sumadhiya
fisik Properties
leleh Point
986.00 ° C
99+
1,042.00 ° C
99+
Boiling Point
2,627.00 ° C
40
3,000.00 ° C
31
katon
State fisik
Solid
Solid
warna
Silver
Unknown
luster
metallic
metallic
atose
Kacepetan swara
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Properties Optical
allotropes
Ora
Ora
α allotropes
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β allotropes
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γ allotropes
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Kimia Properties
Formula Kimia
Bk
Pm
isotop
Isotop dikenal
14
25
27
12
keelektronegatifan
Pauling Elektronegativitas
1.30
32
ora Sumadhiya
Allred Rochow Elektronegativitas
1.20
27
1.07
32
Allen Elektronegativitas
2.70
1
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Electropositivity
Pauling Electropositivity
2.70
22
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tenogo ionisasi
Level Energy 1st
601.00 kJ / mol
99+
540.00 kJ / mol
99+
Level Energy 2
1,186.00 kJ / mol
99+
1,050.00 kJ / mol
99+
Level Energy 3rd
2,152.00 kJ / mol
99+
2,150.00 kJ / mol
99+
Level Energy 4
3,434.00 kJ / mol
99+
3,970.00 kJ / mol
38
padha karo elektrokimia
3.07 g / amp-day
16
1.80 g / amp-day
36
Fungsi Work elektron
ora Sumadhiya
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Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
97
21
61
99+
Konfigurasi elektron
[Rn] 5F 9 7s 2
[Xe] 4F 5 6s 2
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Double Hexagonal Tutup dikempalken (DHCP)
Crystal pola
DHCP-Crystal-Structure-of-Berkelium.jpg#100
DHCP-Crystal-Structure-of-Promethium.jpg#100
atom
Jumlah proton
97
21
61
99+
Jumlah Neutron
150
11
84
40
Jumlah Èlèktron
97
21
61
99+
Radius saka Atom
Radius atom
170.00 pm
22
183.00 pm
10
kovalen Radius
ora Sumadhiya
199.00 pm
12
Van der Waals Radius
ora Sumadhiya
236.00 pm
16
Bobot atom
247.00 Amu
18
145.00 Amu
99+
Volume atom
ora Sumadhiya
22.39 cm3 / mol
12
Nomer atom jejer
Potensi Valence Electron
45.50 (-eV)
36
44.10 (-eV)
39
Constant pola
341.60 pm
99+
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pola Angles
π/2, π/2, 2 π/3
Unknown
Pola C / A rasio
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Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
14.78 g / cm 3
22
7.26 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
13.25 g / cm3
11
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Strength tensile
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viskositas
ora Sumadhiya
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meksa beluk
situs kelenturan
nyukur pengaturan
ora Sumadhiya
18.00 GPA
36
pengaturan akeh
ora Sumadhiya
33.00 GPA
36
Young kang pengaturan
ora Sumadhiya
46.00 GPA
38
Poisson rasio
ora Sumadhiya
0.28
17
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
14.00
14
7.26
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
ora Sumadhiya
0.75 nΩ · m
99+
elektron Affinity
ora Sumadhiya
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
ora Sumadhiya
0.18 J / (kg K)
33
Graham Kapasitas kalor
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doyo termal
10.00 W / m · K
99+
17.90 W / m · K
99+
suhu kritis
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Expansion termal
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9.00 μm / (m · K)
99+
enthalpy
Enthalpy saka Fusion
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7.50 kJ / mol
99+
Enthalpy saka atomization
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310.00 kJ / mol
34
Standard molar Entropy
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