1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.5 Block
1.6 Element Family
1.7 CAS Number
74403597440075
7429905
54386242
2.2 Space Group Name
2.3 Space Group Number
3 Facts
3.1 Interesting Facts
- Americium metal is produced by bombarding Plutonium with Neutrons.
- Americium metal was discovered as a by-product while testing an atomic bomb (Manhattan Project).
- Plutonium metal if obtain from ores of uranium metal.
- Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
3.2 Sources
Obtained By Bombarding Plutonium with Neutrons
Mining, Ores of metals
3.3 History
3.3.1 Who Discovered
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan
3.3.2 Discovery
In 1944
In Between 1940 1941
3.4 Abundance
3.4.1 Abundance In Universe
3.6.3 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
5.1.1 Abundance In Meteorites
5.5.2 Abundance In Earth's Crust
5.5.5 Abundance In Oceans
6.1.1 Abundance In Humans
7 Uses
7.1 Uses & Benefits
- Americium metal is used in smoke detection alarms.
-
In the future, this metal has a potential to be used in batteries of spacecrafts.
- Plutonium was used in atomic bombs and still it is being used in various weapons and Ammunition industry.
-
It is also used in nuclear power plant as source of energy for space missions.
7.1.1 Industrial Uses
NA
Aerospace Industry, Ammunition Industry
7.1.2 Medical Uses
7.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
7.2 Biological Properties
7.2.1 Toxicity
7.2.2 Present in Human Body
7.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
7.4.2 In Bone
0.00 p.p.m.0.00 p.p.m.
0
170000
8 Physical
8.1 Melting Point
994.00 °C639.50 °C
27
3410
8.4 Boiling Point
2,607.00 °C3,235.00 °C
147
5660
8.8 Appearance
8.8.1 Physical State
8.8.2 Color
Silvery White
Silvery White
8.8.3 Luster
8.9 Hardness
8.9.1 Mohs Hardness
8.11.1 Brinell Hardness
8.13.1 Vickers Hardness
8.15 Speed of Sound
8.19 Optical Properties
8.19.1 Refractive Index
9.1.2 Reflectivity
9.2 Allotropes
9.2.1 α Allotropes
Not Available
Not Available
9.2.2 β Allotropes
Not Available
Not Available
9.2.3 γ Allotropes
Not Available
Not Available
10 Chemical
10.1 Chemical Formula
10.2 Isotopes
10.2.1 Known Isotopes
10.3 Electronegativity
10.3.1 Pauling Electronegativity
10.4.2 Sanderson Electronegativity
10.6.2 Allred Rochow Electronegativity
10.6.5 Mulliken-Jaffe Electronegativity
10.7.3 Allen Electronegativity
10.8 Electropositivity
10.8.1 Pauling Electropositivity
10.9 Ionization Energies
10.9.1 1st Energy Level
578.00 kJ/mol584.70 kJ/mol
375.7
26130
10.9.4 2nd Energy Level
1,158.00 kJ/mol1,128.00 kJ/mol
710.2162
28750
10.10.2 3rd Energy Level
2,132.00 kJ/mol2,084.00 kJ/mol
1600
34230
11.1.3 4th Energy Level
3,493.00 kJ/mol3,338.00 kJ/mol
2780
37066
11.1.7 5th Energy Level
11.1.10 6th Energy Level
11.2.3 7th Energy level
11.2.5 8th Energy Level
11.2.8 9th Energy Level
11.2.11 10th Energy Level
11.2.13 11th Energy Level
12.1.3 12th Energy Level
12.2.2 13th Energy Level
12.3.2 14th Energy Level
12.4.3 15th Energy Level
12.5.2 16th Energy Level
12.6.3 17th Energy Level
12.7.1 18th Energy Level
12.7.2 19th Energy Level
12.8.1 20th Energy Level
12.9.1 21st Energy Level
13.1.1 22nd Energy Level
13.1.2 23rd Energy Level
13.4.2 24th Energy Level
13.4.3 25th Energy Level
13.4.4 26th Energy Level
13.4.6 27th Energy Level
13.4.7 28th Energy Level
13.4.9 29th Energy Level
13.4.10 30th Energy Level
13.6 Electrochemical Equivalent
3.02 g/amp-hr2.28 g/amp-hr
0.16812
8.3209
13.7 Electron Work Function
13.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Corrosion, Ionization, Radioactive Isotopes, Radioactivity
14 Atomic
14.1 Atomic Number
14.3 Electron Configuration
[Rn] 5f7 7s2
[Rn] 5f6 7s2
14.4 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Monoclinic (MON)
14.4.1 Crystal Lattice
14.5 Atom
14.5.1 Number of Protons
14.6.1 Number of Neutrons
14.8.1 Number of Electrons
14.10 Radius of an Atom
14.10.1 Atomic Radius
173.00 pm159.00 pm
112
265
14.12.1 Covalent Radius
180.00 pm187.00 pm
96
260
15.1.2 Van der Waals Radius
244.00 pm200.00 pm
139
348
15.2 Atomic Weight
243.00 amu244.00 amu
6.94
294
15.3 Atomic Volume
17.86 cm3/mol12.32 cm3/mol
1.39
71.07
15.5 Adjacent Atomic Numbers
15.5.1 Previous Element
15.5.2 Next Element
15.6 Valence Electron Potential
44.00 (-eV)64.90 (-eV)
8
392.42
15.9 Lattice Constant
346.81 pm618.30 pm
228.58
891.25
15.10 Lattice Angles
15.11 Lattice C/A Ratio
16 Mechanical
16.1 Density
16.1.1 Density At Room Temperature
12.00 g/cm319.82 g/cm3
0.534
40.7
16.2.2 Density When Liquid (at m.p.)
16.3 Tensile Strength
16.4 Viscosity
16.5 Vapor Pressure
16.5.1 Vapor Pressure at 1000 K
0.00 (Pa)0.00 (Pa)
2.47E-11
121
16.5.2 Vapor Pressure at 2000 K
16.7 Elasticity properties
16.7.1 Shear Modulus
17.1.2 Bulk Modulus
17.1.5 Young's Modulus
17.2 Poisson Ratio
17.4 Other Mechanical Properties
18 Magnetic
18.1 Magnetic Characteristics
18.1.1 Specific Gravity
18.1.3 Magnetic Ordering
Paramagnetic
Paramagnetic
18.1.4 Permeability
18.1.5 Susceptibility
18.2 Electrical Properties
18.2.1 Electrical Property
18.2.2 Resistivity
0.69 nΩ·m1.46 nΩ·m
0.18
961
18.2.3 Electrical Conductivity
0.02 106/cm Ω0.01 106/cm Ω
0.00666
0.63
19.1.1 Electron Affinity
20 Thermal
20.1 Specific Heat
0.11 J/(kg K)0.13 J/(kg K)
0.11
3.6
20.3 Molar Heat Capacity
62.70 J/mol·K35.50 J/mol·K
16.443
62.7
20.4 Thermal Conductivity
10.00 W/m·K6.74 W/m·K
6.3
429
20.6 Critical Temperature
20.8 Thermal Expansion
20.10 Enthalpy
20.10.1 Enthalpy of Vaporization
NA344.00 kJ/mol
7.32
799.1
20.10.2 Enthalpy of Fusion
14.39 kJ/mol2.82 kJ/mol
2.1
35.23
20.10.4 Enthalpy of Atomization
268.00 kJ/mol360.00 kJ/mol
61.5
837
20.11 Standard Molar Entropy