Radium mungsuh polonium
Tabel périodik
Symbol
Ra
Po
Panggil Group
2
16
16
2
Panggil periode
7
6
Block
s pemblokiran
p pemblokiran
Family unsur
alkalin bumi
Transisi Post-
CAS Number
7440144
99+
7440086
99+
Jeneng papan Group
3M Im_
Pm-3M
Space Group Number
229.00
1
221.00
3
facts
Facts Interesting
- metal Radium punika logam abot saka Alkaline logam bumi asli.
- Radium logam punika Highly radioaktif lan ora duwe tengen mangiwa.
- Polonium unsur radioaktif sing pisanan ditemokaké.
- unsur polonium lan senyawa Highly radioaktif.
- Sawijining logam campuran karo Beryllium menehi sumber neutron.
sumber
Mining, Ores logam
Mining, Ores logam
History
sing katutup
Not Available
Pierre Curie and Marie Curie
Discovery
ing taun 1898
ing taun 1898
turah mbrawah
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
99+
ora Sumadhiya
Turah mbrawah Ing Segara
0.00 %
99+
0.00 %
99+
Turah mbrawah Ing Manungsa
0.00 %
20
ora Sumadhiya
ulah
Ulah lan Wuku
- Punika logam Highly radioaktif; lan arang-arang Radium-223 digunakake kanggo nambani kanker prostat.
- Kang digunakake ing cat cetha.
- 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
NA
Industry Aerospace, Industry amunisi
Ulah Medical
Industry Pharmaceutical
NA
Ulah liyane
NA
wesi
Properties biologi
keracunan
Highly Toxic
Highly Toxic
Saiki ing badan Human
Ora
Ora
Sang
ora Sumadhiya
0.00 Sang / mg dm-3
37
ing Bone
ora Sumadhiya
0.00 ppm
36
fisik Properties
leleh Point
700.00 ° C
99+
254.00 ° C
99+
Boiling Point
1,737.00 ° C
99+
962.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
Silver
luster
metallic
NA
atose
Kacepetan swara
ora Sumadhiya
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
Ra
Po
isotop
Isotop dikenal
33
6
29
10
keelektronegatifan
Pauling Elektronegativitas
0.90
99+
2.00
7
Allred Rochow Elektronegativitas
0.97
38
1.76
2
Mulliken-Jaffe Elektronegativitas
0.92
20
2.48
1
Allen Elektronegativitas
0.89
99+
2.19
2
Electropositivity
Pauling Electropositivity
3.10
5
2.00
99+
tenogo ionisasi
Level Energy 1st
509.30 kJ / mol
99+
812.10 kJ / mol
14
Level Energy 2
979.00 kJ / mol
99+
ora Sumadhiya
padha karo elektrokimia
4.22 g / amp-day
6
3.90 g / amp-day
8
Fungsi Work elektron
ora Sumadhiya
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
88
30
84
32
Konfigurasi elektron
[Rn] 7s 2
[Xe] 4F 14 5d 10 6s 2 6p 4
Struktur Crystal
Body tengah kubik (Bcc)
Pénguapan (Mon)
Crystal pola
BCC-Crystal-Structure-.jpg#100
MON-Crystal-Structure-of-Polonium.jpg#100
atom
Jumlah proton
88
30
84
32
Jumlah Neutron
138
16
125
19
Jumlah Èlèktron
88
30
84
32
Radius saka Atom
Radius atom
ora Sumadhiya
168.00 pm
23
kovalen Radius
221.00 pm
3
140.00 pm
99+
Van der Waals Radius
283.00 pm
4
197.00 pm
29
Bobot atom
226.00 Amu
26
209.00 Amu
28
Volume atom
45.20 cm3 / mol
4
22.23 cm3 / mol
13
Nomer atom jejer
Potensi Valence Electron
20.10 (-eV)
99+
ora Sumadhiya
Constant pola
514.80 pm
13
335.90 pm
99+
pola Angles
π/2, π/2, π/2
π/2, π/2, π/2
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
5.50 g / cm 3
99+
9.20 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya
9.40 g / cm3
19
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
situs kelenturan
Poisson rasio
ora Sumadhiya
ora Sumadhiya
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
5.00
99+
9.32
31
Nindakake Magnetic
nonmagnetic
nonmagnetic
Properties Listrik
Property Listrik
NA
Arman
resistivity
100.00 nΩ · m
31
0.40 nΩ · m
99+
konduktivitas listrik
ora Sumadhiya
0.02 10 6 / cm Ω
99+
elektron Affinity
ora Sumadhiya
183.30 kJ / mol
3
termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
0.12 J / (kg K)
40
Graham Kapasitas kalor
ora Sumadhiya
26.40 J / mol · K
28
doyo termal
18.60 W / m · K
99+
20.00 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
ora Sumadhiya
23.50 μm / (m · K)
16
enthalpy
Enthalpy panguapan
ora Sumadhiya
60.30 kJ / mol
99+
Enthalpy saka Fusion
ora Sumadhiya
13.00 kJ / mol
26
Enthalpy saka atomization
163.00 kJ / mol
99+
134.00 kJ / mol
99+
Standard molar Entropy
71.00 J / mol.K
14
ora Sumadhiya
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