cerium mungsuh polonium
Tabel périodik
Symbol
Ce
Po
Panggil Group
ora Sumadhiya
16
2
Panggil periode
6
6
Block
pemblokiran f
p pemblokiran
Family unsur
lanthanide
Transisi Post-
CAS Number
7440451
99+
7440086
99+
Jeneng papan Group
P63 / mmc
Pm-3M
Space Group Number
194.00
5
221.00
3
facts
Facts Interesting
Character length exceed error
- Polonium unsur radioaktif sing pisanan ditemokaké.
- unsur polonium lan senyawa Highly radioaktif.
- Sawijining logam campuran karo Beryllium menehi sumber neutron.
sumber
Found in Minerals, Mining, Ores saka Minerals
Mining, Ores logam
History
sing katutup
Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger
Pierre Curie and Marie Curie
Discovery
ing 1803
ing taun 1898
turah mbrawah
Turah mbrawah Ing Universe
1 * 10-6 %
16
ora Sumadhiya
Turah mbrawah Ing Sun
~0.0000004 %
23
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
27
ora Sumadhiya
Turah mbrawah Ing bumi lemah ndhuwur
0.01 %
18
ora Sumadhiya
Turah mbrawah Ing Segara
0.00 %
33
0.00 %
99+
ulah
Ulah lan Wuku
- Kang digunakake kanggo kalebu flints kanggo korek rokok.
- Sawijining senyawa Cerium (Gerah) oksida digunakake minangka katalis; sijine nang tembok saka open minangka ngalangi saka buildup saka ampas masak.
- Polonium logam allotropes beda, kang digunakake ing piranti antistatic lan kanggo riset waé.
- A 1 gram saka Polonium bisa tekan suhu 500 ° C, Empu kang digunakake minangka sumber panas kanggo peralatan papan.
Ulah Industrial
Industri Kimia
Industry Aerospace, Industry amunisi
Ulah Medical
Medical Research
NA
Ulah liyane
wesi
wesi
Properties biologi
keracunan
arep Toxic
Highly Toxic
Saiki ing badan Human
Ya
Ora
Sang
0.00 Sang / mg dm-3
30
0.00 Sang / mg dm-3
37
ing Bone
2.70 ppm
14
0.00 ppm
36
fisik Properties
leleh Point
795.00 ° C
99+
254.00 ° C
99+
Boiling Point
3,257.00 ° C
23
962.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
Silver
luster
lustrous
NA
atose
Mohs atose
2.50
14
ora Sumadhiya
Brinell atose
186.00 MPa
99+
ora Sumadhiya
Vickers atose
210.00 MPa
32
ora Sumadhiya
Kacepetan swara
2,100.00 m / s
99+
ora Sumadhiya
Properties Optical
allotropes
Ora
Ya
α allotropes
ora Sumadhiya
α-polonium
β allotropes
ora Sumadhiya
β-polonium
γ allotropes
ora Sumadhiya
ora Sumadhiya
Kimia Properties
Formula Kimia
Ce
Po
isotop
Isotop dikenal
30
9
29
10
keelektronegatifan
Pauling Elektronegativitas
1.12
99+
2.00
7
Allred Rochow Elektronegativitas
1.08
31
1.76
2
Mulliken-Jaffe Elektronegativitas
ora Sumadhiya
2.48
1
Allen Elektronegativitas
ora Sumadhiya
2.19
2
Electropositivity
Pauling Electropositivity
2.88
11
2.00
99+
tenogo ionisasi
Level Energy 1st
534.40 kJ / mol
99+
812.10 kJ / mol
14
Level Energy 2
1,050.00 kJ / mol
99+
ora Sumadhiya
Level Energy 3rd
1,949.00 kJ / mol
99+
ora Sumadhiya
Level Energy 4
3,547.00 kJ / mol
99+
ora Sumadhiya
Level Energy 5th
6,325.00 kJ / mol
22
ora Sumadhiya
Level Energy 6th
7,490.00 kJ / mol
21
ora Sumadhiya
padha karo elektrokimia
1.74 g / amp-day
99+
3.90 g / amp-day
8
Fungsi Work elektron
2.84 eV
39
ora Sumadhiya
Properties Kimia liyane
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
58
99+
84
32
Konfigurasi elektron
[Xe] 4F 1 5d 1 6s 2
[Xe] 4F 14 5d 10 6s 2 6p 4
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Pénguapan (Mon)
Crystal pola
DHCP-Crystal-Structure-of-Cerium.jpg#100
MON-Crystal-Structure-of-Polonium.jpg#100
atom
Jumlah proton
58
99+
84
32
Jumlah Neutron
82
99+
125
19
Jumlah Èlèktron
58
99+
84
32
Radius saka Atom
Radius atom
181.80 pm
12
168.00 pm
23
kovalen Radius
204.00 pm
8
140.00 pm
99+
Van der Waals Radius
235.00 pm
17
197.00 pm
29
Bobot atom
140.12 Amu
99+
209.00 Amu
28
Volume atom
20.67 cm3 / mol
17
22.23 cm3 / mol
13
Nomer atom jejer
Potensi Valence Electron
41.78 (-eV)
99+
ora Sumadhiya
Constant pola
362.00 pm
34
335.90 pm
99+
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
6.77 g / cm 3
99+
9.20 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
6.55 g / cm3
38
9.40 g / cm3
19
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa)
34
ora Sumadhiya
Meksa beluk ing 2000 K
1.04 (Pa)
13
ora Sumadhiya
situs kelenturan
nyukur pengaturan
13.50 GPA
99+
ora Sumadhiya
pengaturan akeh
21.50 GPA
99+
ora Sumadhiya
Young kang pengaturan
33.60 GPA
99+
ora Sumadhiya
Poisson rasio
0.24
27
ora Sumadhiya
Properties Teknik liyane
ductile, malleable
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
6.77
99+
9.32
31
Nindakake Magnetic
paramagnetic
nonmagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
828.00 nΩ · m
3
0.40 nΩ · m
99+
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.02 10 6 / cm Ω
99+
elektron Affinity
50.00 kJ / mol
21
183.30 kJ / mol
3
termal Properties
Kalor tartamtu
0.19 J / (kg K)
32
0.12 J / (kg K)
40
Graham Kapasitas kalor
26.94 J / mol · K
23
26.40 J / mol · K
28
doyo termal
11.30 W / m · K
99+
20.00 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
6.30 μm / (m · K)
99+
23.50 μm / (m · K)
16
enthalpy
Enthalpy panguapan
414.00 kJ / mol
16
60.30 kJ / mol
99+
Enthalpy saka Fusion
5.46 kJ / mol
99+
13.00 kJ / mol
26
Enthalpy saka atomization
381.00 kJ / mol
23
134.00 kJ / mol
99+
Standard molar Entropy
72.00 J / mol.K
12
ora Sumadhiya
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