mbandhingaké Protaktinium lan Curium
Tabel périodik
Symbol
Pa
Cm
Panggil Group
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Panggil periode
7
7
Block
pemblokiran f
pemblokiran f
Family unsur
actinide
actinide
CAS Number
7440133
99+
7440519
36
Jeneng papan Group
I4 / mmm
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Space Group Number
139.00
8
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facts
Facts Interesting
- metal Protaktinium wis 29 isotop.
- Isotop saka Protaktinium-231 digunakake ing gegaman nuklir.
- metal Curium ora kelakon free ing alam.
- metal Curium logam sintetik diprodhuksi.
sumber
Found in Ores Uranium, Mining, Ores logam
Némbakaké Plutonium karo helium ion
History
sing katutup
William Crookes
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso
Discovery
ing taun 1900
ing 1944
turah mbrawah
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
99+
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Turah mbrawah Ing Segara
0.00 %
99+
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ulah
Ulah lan Wuku
- Efesus saiki dikenal saka logam Protaktinium sing winates kanggo riset waé mung.
- metal Curium digunakake kanggo nyedhiyani daya kanggo peralatan listrik kanggo papan misi.
Ulah Industrial
NA
NA
Ulah Medical
NA
NA
Ulah liyane
NA
tujuan Research
Properties biologi
keracunan
Highly Toxic
Unknown
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
0.00 ppm
36
fisik Properties
leleh Point
1,568.00 ° C
21
1,340.00 ° C
34
Boiling Point
4,027.00 ° C
12
3,110.00 ° C
30
katon
State fisik
Solid
Solid
warna
Silver
Silver
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
Pa
Cm
isotop
Isotop dikenal
27
12
15
24
keelektronegatifan
Pauling Elektronegativitas
1.50
27
1.30
32
Allred Rochow Elektronegativitas
1.14
28
1.20
27
Electropositivity
Pauling Electropositivity
2.50
27
2.70
22
tenogo ionisasi
Level Energy 1st
568.00 kJ / mol
99+
581.00 kJ / mol
99+
Level Energy 2
1,128.00 kJ / mol
99+
1,196.00 kJ / mol
99+
Level Energy 3rd
1,814.00 kJ / mol
99+
2,026.00 kJ / mol
99+
Level Energy 4
2,991.00 kJ / mol
99+
3,550.00 kJ / mol
99+
padha karo elektrokimia
1.72 g / amp-day
99+
3.07 g / amp-day
16
Fungsi Work elektron
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Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
ionisasi, Isotop radioaktif
atom Properties
Panggil atom
91
27
96
22
Konfigurasi elektron
[Rn] 5F 2 6D 1 7s 2
[Rn] 5F 7 6D 1 7s 2
Struktur Crystal
Tetragonal (TETR)
Double Hexagonal Tutup dikempalken (DHCP)
Crystal pola
TETR-Crystal-Structure-of-Protactinium.jpg#100
DHCP-Crystal-Structure-of-Curium.jpg#100
atom
Jumlah proton
91
27
96
22
Jumlah Neutron
122
21
151
10
Jumlah Èlèktron
91
27
96
22
Radius saka Atom
Radius atom
163.00 pm
25
174.00 pm
20
kovalen Radius
200.00 pm
11
169.00 pm
26
Van der Waals Radius
243.00 pm
11
200.00 pm
28
Bobot atom
231.04 Amu
24
247.00 Amu
18
Volume atom
15.00 cm3 / mol
34
18.28 cm3 / mol
26
Nomer atom jejer
Potensi Valence Electron
92.00 (-eV)
11
44.50 (-eV)
38
Constant pola
392.50 pm
23
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pola Angles
π/2, π/2, π/2
NA
Pola C / A rasio
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Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
15.37 g / cm 3
20
13.51 g / cm 3
25
Kapadhetan Nalika Liquid (ing mp)
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13.85 g / cm3
10
Strength tensile
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viskositas
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meksa beluk
situs kelenturan
Poisson rasio
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Properties Teknik liyane
Unknown
Unknown
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
15.37
12
13.51
17
Nindakake Magnetic
paramagnetic
Antiferromagnetic
Properties Listrik
Property Listrik
Arman
Unknown
resistivity
177.00 nΩ · m
21
1.25 nΩ · m
99+
konduktivitas listrik
0.05 10 6 / cm Ω
34
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termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
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Graham Kapasitas kalor
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doyo termal
47.00 W / m · K
32
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suhu kritis
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Expansion termal
9.90 μm / (m · K)
40
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enthalpy
Enthalpy saka Fusion
12.34 kJ / mol
28
15.00 kJ / mol
21
Standard molar Entropy
198.10 J / mol.K
1
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