polonium mungsuh Samarium
Tabel périodik
Symbol
Po
Sm
Panggil Group
16
2
ora Sumadhiya
Panggil periode
6
6
Block
p pemblokiran
pemblokiran f
Family unsur
Transisi Post-
lanthanide
CAS Number
7440086
99+
7440199
99+
Jeneng papan Group
Pm-3M
R_ 3M
Space Group Number
221.00
3
166.00
6
facts
Facts Interesting
- Polonium unsur radioaktif sing pisanan ditemokaké.
- unsur polonium lan senyawa Highly radioaktif.
- Sawijining logam campuran karo Beryllium menehi sumber neutron.
- Samarium logam mbantu menehi pancingan metabolisme awak.
- Samarium logam ana 1st diamati dening Jean Charles Galissard de Marignac ing Dydimia ing 1853.
sumber
Mining, Ores logam
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Pierre Curie and Marie Curie
Lecoq de Boisbaudran
Discovery
ing taun 1898
ing taun 1879
turah mbrawah
Turah mbrawah Ing Universe
ora Sumadhiya
5 * 10-7 %
19
Turah mbrawah Ing Sun
~-9999 %
~0.0000001 %
26
Turah mbrawah Ing meteorit
ora Sumadhiya
0.00 %
37
Turah mbrawah Ing bumi lemah ndhuwur
ora Sumadhiya
0.00 %
29
Turah mbrawah Ing Segara
0.00 %
99+
0.00 %
40
ulah
Ulah lan Wuku
- 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.
Character length exceed error
Ulah Industrial
Industry Aerospace, Industry amunisi
Industry Aerospace, Industry automobile, Industri Kimia, Industry Listrik, Industry Elektronik
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi, Ing Reactors Nuclear
Properties biologi
keracunan
Highly Toxic
rada Toxic
Saiki ing badan Human
Ora
Ya
Sang
0.00 Sang / mg dm-3
37
0.01 Sang / mg dm-3
22
ing Bone
0.00 ppm
36
ora Sumadhiya
fisik Properties
leleh Point
254.00 ° C
99+
1,072.00 ° C
99+
Boiling Point
962.00 ° C
99+
1,900.00 ° C
99+
katon
State fisik
Solid
Solid
warna
Silver
perak Putih
luster
NA
lustrous
atose
Brinell atose
ora Sumadhiya
441.00 MPa
27
Vickers atose
ora Sumadhiya
412.00 MPa
24
Kacepetan swara
ora Sumadhiya
2,130.00 m / s
99+
Properties Optical
allotropes
Ya
Ora
α allotropes
α-polonium
ora Sumadhiya
β allotropes
β-polonium
ora Sumadhiya
γ allotropes
ora Sumadhiya
ora Sumadhiya
Kimia Properties
Formula Kimia
Po
Sm
isotop
Isotop dikenal
29
10
30
9
keelektronegatifan
Pauling Elektronegativitas
2.00
7
1.17
40
Allred Rochow Elektronegativitas
1.76
2
1.07
32
Mulliken-Jaffe Elektronegativitas
2.48
1
ora Sumadhiya
Allen Elektronegativitas
2.19
2
ora Sumadhiya
Electropositivity
Pauling Electropositivity
2.00
99+
2.83
14
tenogo ionisasi
Level Energy 1st
812.10 kJ / mol
14
544.50 kJ / mol
99+
Level Energy 2
ora Sumadhiya
1,070.00 kJ / mol
99+
Level Energy 3rd
ora Sumadhiya
2,260.00 kJ / mol
99+
Level Energy 4
ora Sumadhiya
3,990.00 kJ / mol
37
padha karo elektrokimia
3.90 g / amp-day
8
1.87 g / amp-day
34
Fungsi Work elektron
ora Sumadhiya
2.70 eV
99+
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif
atom Properties
Panggil atom
84
32
62
99+
Konfigurasi elektron
[Xe] 4F 14 5d 10 6s 2 6p 4
[Xe] 4F 6 6s 2
Struktur Crystal
Pénguapan (Mon)
Rhombohedral (RHO)
Crystal pola
MON-Crystal-Structure-of-Polonium.jpg#100
RHO-Crystal-Structure-of-Samarium.jpg#100
atom
Jumlah proton
84
32
62
99+
Jumlah Neutron
125
19
88
39
Jumlah Èlèktron
84
32
62
99+
Radius saka Atom
Radius atom
168.00 pm
23
180.00 pm
14
kovalen Radius
140.00 pm
99+
198.00 pm
13
Van der Waals Radius
197.00 pm
29
229.00 pm
20
Bobot atom
209.00 Amu
28
150.36 Amu
99+
Volume atom
22.23 cm3 / mol
13
19.95 cm3 / mol
19
Nomer atom jejer
Potensi Valence Electron
ora Sumadhiya
44.80 (-eV)
37
Constant pola
335.90 pm
99+
362.10 pm
33
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
9.20 g / cm 3
99+
7.52 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
9.40 g / cm3
19
7.16 g / cm3
32
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
ora Sumadhiya
0.94 (Pa)
9
situs kelenturan
nyukur pengaturan
ora Sumadhiya
19.50 GPA
34
pengaturan akeh
ora Sumadhiya
37.80 GPA
35
Young kang pengaturan
ora Sumadhiya
49.70 GPA
37
Poisson rasio
ora Sumadhiya
0.27
19
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
9.32
31
7.52
99+
Nindakake Magnetic
nonmagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.40 nΩ · m
99+
0.94 nΩ · m
99+
konduktivitas listrik
0.02 10 6 / cm Ω
99+
0.01 10 6 / cm Ω
99+
elektron Affinity
183.30 kJ / mol
3
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
0.20 J / (kg K)
31
Graham Kapasitas kalor
26.40 J / mol · K
28
29.54 J / mol · K
7
doyo termal
20.00 W / m · K
99+
13.30 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
23.50 μm / (m · K)
16
12.70 μm / (m · K)
30
enthalpy
Enthalpy panguapan
60.30 kJ / mol
99+
166.40 kJ / mol
99+
Enthalpy saka Fusion
13.00 kJ / mol
26
8.62 kJ / mol
40
Enthalpy saka atomization
134.00 kJ / mol
99+
209.00 kJ / mol
99+
Standard molar Entropy
ora Sumadhiya
69.60 J / mol.K
15
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