lanthanum mungsuh polonium
Tabel périodik
Symbol
La
Po
Panggil Group
ora Sumadhiya
16
2
Panggil periode
6
6
Block
pemblokiran f
p pemblokiran
Family unsur
lanthanide
Transisi Post-
CAS Number
7439910
99+
7440086
99+
Jeneng papan Group
P63 / mmc
Pm-3M
Space Group Number
194.00
5
221.00
3
facts
Facts Interesting
- Lanthanum logam punika Highly malleable, ductile lan sectile.
- Yen kapapar logam Lanthanum online oxidizes kanthi cepet.
- 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
Carl Gustaf Mosander
Pierre Curie and Marie Curie
Discovery
Wonten ing taun 1838
ing taun 1898
turah mbrawah
Turah mbrawah Ing Universe
2 * 10-7 %
22
ora Sumadhiya
Turah mbrawah Ing Sun
~0.0000002 %
25
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
32
ora Sumadhiya
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
19
ora Sumadhiya
Turah mbrawah Ing Segara
0.00 %
29
0.00 %
99+
ulah
Ulah lan Wuku
Character length exceed error
- 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
Industry Listrik, Industry Elektronik
Industry Aerospace, Industry amunisi
Ulah Medical
NA
NA
Ulah liyane
wesi, Manufacturing mirror
wesi
Properties biologi
keracunan
Low Toxic
Highly Toxic
Saiki ing badan Human
Ya
Ora
Sang
ora Sumadhiya
0.00 Sang / mg dm-3
37
ing Bone
0.08 ppm
24
0.00 ppm
36
fisik Properties
leleh Point
920.00 ° C
99+
254.00 ° C
99+
Boiling Point
3,469.00 ° C
18
962.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
Silver
luster
NA
NA
atose
Mohs atose
2.50
14
ora Sumadhiya
Brinell atose
350.00 MPa
30
ora Sumadhiya
Vickers atose
360.00 MPa
26
ora Sumadhiya
Kacepetan swara
2,475.00 m / s
37
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
La
Po
isotop
Isotop dikenal
31
8
29
10
keelektronegatifan
Pauling Elektronegativitas
1.10
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
2.90
10
2.00
99+
tenogo ionisasi
Level Energy 1st
538.10 kJ / mol
99+
812.10 kJ / mol
14
Level Energy 2
1,067.00 kJ / mol
99+
ora Sumadhiya
Level Energy 3rd
1,850.30 kJ / mol
99+
ora Sumadhiya
Level Energy 4
4,819.00 kJ / mol
22
ora Sumadhiya
Level Energy 5th
5,940.00 kJ / mol
25
ora Sumadhiya
padha karo elektrokimia
1.73 g / amp-day
99+
3.90 g / amp-day
8
Fungsi Work elektron
3.50 eV
31
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
57
99+
84
32
Konfigurasi elektron
[Xe] 5d 2 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-Lanthanum.jpg#100
MON-Crystal-Structure-of-Polonium.jpg#100
atom
Jumlah proton
57
99+
84
32
Jumlah Neutron
82
99+
125
19
Jumlah Èlèktron
57
99+
84
32
Radius saka Atom
Radius atom
187.00 pm
8
168.00 pm
23
kovalen Radius
207.00 pm
6
140.00 pm
99+
Van der Waals Radius
240.00 pm
13
197.00 pm
29
Bobot atom
138.91 Amu
99+
209.00 Amu
28
Volume atom
20.73 cm3 / mol
16
22.23 cm3 / mol
13
Nomer atom jejer
Potensi Valence Electron
40.71 (-eV)
99+
ora Sumadhiya
Constant pola
377.20 pm
28
335.90 pm
99+
pola Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Pola C / A rasio
1.62
2
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
6.16 g / cm 3
99+
9.20 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
5.94 g / cm3
99+
9.40 g / cm3
19
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 2000 K
0.98 (Pa)
15
ora Sumadhiya
situs kelenturan
nyukur pengaturan
14.30 GPA
40
ora Sumadhiya
pengaturan akeh
27.90 GPA
99+
ora Sumadhiya
Young kang pengaturan
36.60 GPA
99+
ora Sumadhiya
Poisson rasio
0.28
17
ora Sumadhiya
Properties Teknik liyane
ductile
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
6.17
99+
9.32
31
Nindakake Magnetic
paramagnetic
nonmagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
615.00 nΩ · m
7
0.40 nΩ · m
99+
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.02 10 6 / cm Ω
99+
elektron Affinity
48.00 kJ / mol
23
183.30 kJ / mol
3
termal Properties
Kalor tartamtu
0.19 J / (kg K)
32
0.12 J / (kg K)
40
Graham Kapasitas kalor
27.11 J / mol · K
21
26.40 J / mol · K
28
doyo termal
13.40 W / m · K
99+
20.00 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
12.10 μm / (m · K)
32
23.50 μm / (m · K)
16
enthalpy
Enthalpy panguapan
399.60 kJ / mol
17
60.30 kJ / mol
99+
Enthalpy saka Fusion
6.20 kJ / mol
99+
13.00 kJ / mol
26
Enthalpy saka atomization
431.00 kJ / mol
16
134.00 kJ / mol
99+
Standard molar Entropy
56.90 J / mol.K
23
ora Sumadhiya
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