mbandhingaké americium lan Radium
Tabel périodik
Symbol
Am
Ra
Panggil Group
ora Sumadhiya
2
16
Panggil periode
7
7
Block
pemblokiran f
s pemblokiran
Family unsur
actinide
alkalin bumi
CAS Number
7440359
99+
7440144
99+
Jeneng papan Group
P63 / mmc
3M Im_
Space Group Number
194.00
5
229.00
1
facts
Facts Interesting
- metal Americium diprodhuksi dening némbakaké Plutonium karo Neutron.
- metal Americium ditemokaké minangka dening-produk nalika Testing bom atom (Manhattan Project).
- metal Radium punika logam abot saka Alkaline logam bumi asli.
- Radium logam punika Highly radioaktif lan ora duwe tengen mangiwa.
sumber
Dijupuk dening bombarding plutonium karo Neutron
Mining, Ores logam
History
sing katutup
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
Not Available
Discovery
ing 1944
ing taun 1898
turah mbrawah
Turah mbrawah Ing bumi lemah ndhuwur
ora Sumadhiya
0.00 %
99+
Turah mbrawah Ing Segara
ora Sumadhiya
0.00 %
99+
Turah mbrawah Ing Manungsa
ora Sumadhiya
0.00 %
20
ulah
Ulah lan Wuku
- metal Americium digunakake ing weker deteksi kumelun.
- Ing mangsa, logam gadhah potensi digunakake ing batre spacecrafts.
- Punika logam Highly radioaktif; lan arang-arang Radium-223 digunakake kanggo nambani kanker prostat.
- Kang digunakake ing cat cetha.
Ulah Industrial
NA
NA
Ulah Medical
NA
Industry Pharmaceutical
Ulah liyane
wesi, Nuclear Riset, tujuan Research
NA
Properties biologi
keracunan
Toxic
Highly Toxic
Saiki ing badan Human
Ora
Ora
Sang
0.00 Sang / mg dm-3
37
ora Sumadhiya
ing Bone
0.00 ppm
36
ora Sumadhiya
fisik Properties
leleh Point
994.00 ° C
99+
700.00 ° C
99+
Boiling Point
2,607.00 ° C
99+
1,737.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
NA
metallic
atose
Kacepetan swara
ora Sumadhiya
ora Sumadhiya
Properties Optical
allotropes
Ora
Ora
α allotropes
ora Sumadhiya
ora Sumadhiya
β allotropes
ora Sumadhiya
ora Sumadhiya
γ allotropes
ora Sumadhiya
ora Sumadhiya
Kimia Properties
Formula Kimia
Am
Ra
isotop
Isotop dikenal
16
23
33
6
keelektronegatifan
Pauling Elektronegativitas
1.30
32
0.90
99+
Allred Rochow Elektronegativitas
1.20
27
0.97
38
Mulliken-Jaffe Elektronegativitas
ora Sumadhiya
0.92
20
Allen Elektronegativitas
ora Sumadhiya
0.89
99+
Electropositivity
Pauling Electropositivity
2.70
22
3.10
5
tenogo ionisasi
Level Energy 1st
578.00 kJ / mol
99+
509.30 kJ / mol
99+
Level Energy 2
1,158.00 kJ / mol
99+
979.00 kJ / mol
99+
Level Energy 3rd
2,132.00 kJ / mol
99+
ora Sumadhiya
Level Energy 4
3,493.00 kJ / mol
99+
ora Sumadhiya
padha karo elektrokimia
3.02 g / amp-day
17
4.22 g / amp-day
6
Fungsi Work elektron
ora Sumadhiya
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
ionisasi, Isotop radioaktif, Radioaktif
atom Properties
Panggil atom
95
23
88
30
Konfigurasi elektron
[Rn] 5F 7 7s 2
[Rn] 7s 2
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Body tengah kubik (Bcc)
Crystal pola
DHCP-Crystal-Structure-of-Americium.jpg#100
BCC-Crystal-Structure-.jpg#100
atom
Jumlah proton
95
23
88
30
Jumlah Neutron
148
12
138
16
Jumlah Èlèktron
95
23
88
30
Radius saka Atom
Radius atom
173.00 pm
21
ora Sumadhiya
kovalen Radius
180.00 pm
21
221.00 pm
3
Van der Waals Radius
244.00 pm
10
283.00 pm
4
Bobot atom
243.00 Amu
20
226.00 Amu
26
Volume atom
17.86 cm3 / mol
29
45.20 cm3 / mol
4
Nomer atom jejer
Potensi Valence Electron
44.00 (-eV)
40
20.10 (-eV)
99+
Constant pola
346.81 pm
99+
514.80 pm
13
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
12.00 g / cm 3
30
5.50 g / cm 3
99+
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
0.00 (Pa)
13
ora Sumadhiya
situs kelenturan
Poisson rasio
ora Sumadhiya
ora Sumadhiya
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
13.67
15
5.00
99+
Nindakake Magnetic
paramagnetic
nonmagnetic
Properties Listrik
Property Listrik
Unknown
NA
resistivity
0.69 nΩ · m
99+
100.00 nΩ · m
31
konduktivitas listrik
0.02 10 6 / cm Ω
99+
ora Sumadhiya
termal Properties
Kalor tartamtu
0.11 J / (kg K)
99+
0.12 J / (kg K)
40
Graham Kapasitas kalor
62.70 J / mol · K
1
ora Sumadhiya
doyo termal
10.00 W / m · K
99+
18.60 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
ora Sumadhiya
ora Sumadhiya
enthalpy
Enthalpy saka Fusion
14.39 kJ / mol
24
ora Sumadhiya
Enthalpy saka atomization
268.00 kJ / mol
40
163.00 kJ / mol
99+
Standard molar Entropy
ora Sumadhiya
71.00 J / mol.K
14
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