polonium mungsuh prometium
Tabel périodik
Symbol
Po
Pm
Panggil Group
16
2
ora Sumadhiya
Panggil periode
6
6
Block
p pemblokiran
pemblokiran f
Family unsur
Transisi Post-
lanthanide
CAS Number
7440086
99+
7440122
99+
Jeneng papan Group
Pm-3M
ora Sumadhiya
Space Group Number
221.00
3
ora Sumadhiya
facts
Facts Interesting
- Polonium unsur radioaktif sing pisanan ditemokaké.
- unsur polonium lan senyawa Highly radioaktif.
- Sawijining logam campuran karo Beryllium menehi sumber neutron.
- metal Prometium ditemokaké ing pitchblende.
- Prometium logam logam Highly radioaktif.
sumber
Mining, Ores logam
Found in Minerals, Mining
History
sing katutup
Pierre Curie and Marie Curie
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Discovery
ing taun 1898
ing taun 1942
turah mbrawah
Turah mbrawah Ing Segara
0.00 %
99+
ora Sumadhiya
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.
- 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
Industry Aerospace, Industry amunisi
NA
Ulah Medical
NA
NA
Ulah liyane
wesi
NA
Properties biologi
keracunan
Highly Toxic
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
254.00 ° C
99+
1,042.00 ° C
99+
Boiling Point
962.00 ° C
99+
3,000.00 ° C
31
katon
State fisik
Solid
Solid
warna
Silver
Unknown
luster
NA
metallic
atose
Kacepetan swara
ora Sumadhiya
ora Sumadhiya
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
Pm
isotop
Isotop dikenal
29
10
27
12
keelektronegatifan
Pauling Elektronegativitas
2.00
7
ora Sumadhiya
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+
ora Sumadhiya
tenogo ionisasi
Level Energy 1st
812.10 kJ / mol
14
540.00 kJ / mol
99+
Level Energy 2
ora Sumadhiya
1,050.00 kJ / mol
99+
Level Energy 3rd
ora Sumadhiya
2,150.00 kJ / mol
99+
Level Energy 4
ora Sumadhiya
3,970.00 kJ / mol
38
padha karo elektrokimia
3.90 g / amp-day
8
1.80 g / amp-day
36
Fungsi Work elektron
ora Sumadhiya
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
84
32
61
99+
Konfigurasi elektron
[Xe] 4F 14 5d 10 6s 2 6p 4
[Xe] 4F 5 6s 2
Struktur Crystal
Pénguapan (Mon)
Double Hexagonal Tutup dikempalken (DHCP)
Crystal pola
MON-Crystal-Structure-of-Polonium.jpg#100
DHCP-Crystal-Structure-of-Promethium.jpg#100
atom
Jumlah proton
84
32
61
99+
Jumlah Neutron
125
19
84
40
Jumlah Èlèktron
84
32
61
99+
Radius saka Atom
Radius atom
168.00 pm
23
183.00 pm
10
kovalen Radius
140.00 pm
99+
199.00 pm
12
Van der Waals Radius
197.00 pm
29
236.00 pm
16
Bobot atom
209.00 Amu
28
145.00 Amu
99+
Volume atom
22.23 cm3 / mol
13
22.39 cm3 / mol
12
Nomer atom jejer
Potensi Valence Electron
ora Sumadhiya
44.10 (-eV)
39
Constant pola
335.90 pm
99+
ora Sumadhiya
pola Angles
π/2, π/2, π/2
Unknown
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
9.20 g / cm 3
99+
7.26 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
9.40 g / cm3
19
ora Sumadhiya
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
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
9.32
31
7.26
99+
Nindakake Magnetic
nonmagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.40 nΩ · m
99+
0.75 nΩ · m
99+
konduktivitas listrik
0.02 10 6 / cm Ω
99+
ora Sumadhiya
elektron Affinity
183.30 kJ / mol
3
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
0.18 J / (kg K)
33
Graham Kapasitas kalor
26.40 J / mol · K
28
ora Sumadhiya
doyo termal
20.00 W / m · K
99+
17.90 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
23.50 μm / (m · K)
16
9.00 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
60.30 kJ / mol
99+
ora Sumadhiya
Enthalpy saka Fusion
13.00 kJ / mol
26
7.50 kJ / mol
99+
Enthalpy saka atomization
134.00 kJ / mol
99+
310.00 kJ / mol
34
Standard molar Entropy
ora Sumadhiya
ora Sumadhiya
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