1 Periodic Table
1.1 Symbol
1.2 Group Number
2.5 Period Number
2.6 Block
2.7 Element Family
Actinide
Transition Metal
2.8 CAS Number
74403597439976
7429905
54386242
2.9 Space Group Name
2.10 Space Group Number
2 Facts
2.1 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).
- At room temperature mercury is found in a liquid state.
- A coin of pound or rupees floats in mercury.
- Because of its low melting point and boiling point it is used in thermometers.
2.2 Sources
Obtained By Bombarding Plutonium with Neutrons
Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
Ancient Chinese and Indians
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.5.1 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
2.8.1 Abundance In Meteorites
1.1.1 Abundance In Earth's Crust
3.3.1 Abundance In Oceans
3.6.1 Abundance In Humans
4 Uses
4.1 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.
- It is a liquid metal at room temperature, but it is a toxic heavy metal and hence many uses of mercury are under review or phased out.
- It is manly used as a catalysts in chemical industry.
4.1.1 Industrial Uses
NA
Electrical Industry, Electronic Industry
4.1.2 Medical Uses
4.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys, Mirror Manufacturing, Pharmaceutical Industry
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.3 In Blood
0.00 Blood/mg dm-30.01 Blood/mg dm-3
0
1970
7.2.3 In Bone
0.00 p.p.m.0.45 p.p.m.
0
170000
8 Physical
8.1 Melting Point
9.6 Boiling Point
2,607.00 °C356.58 °C
147
5660
10.3 Appearance
10.3.1 Physical State
10.3.2 Color
10.3.3 Luster
10.4 Hardness
10.4.1 Mohs Hardness
10.4.6 Brinell Hardness
11.1.1 Vickers Hardness
12.3 Speed of Sound
12.8 Optical Properties
12.8.1 Refractive Index
12.8.2 Reflectivity
12.11 Allotropes
12.11.1 α Allotropes
Not Available
Not Available
12.11.2 β Allotropes
Not Available
Not Available
12.11.3 γ Allotropes
Not Available
Not Available
13 Chemical
13.1 Chemical Formula
13.2 Isotopes
13.2.1 Known Isotopes
13.3 Electronegativity
13.3.1 Pauling Electronegativity
13.4.2 Sanderson Electronegativity
13.5.7 Allred Rochow Electronegativity
13.6.1 Mulliken-Jaffe Electronegativity
13.6.5 Allen Electronegativity
13.8 Electropositivity
13.8.1 Pauling Electropositivity
14.3 Ionization Energies
14.3.1 1st Energy Level
578.00 kJ/mol1,007.10 kJ/mol
375.7
26130
14.3.4 2nd Energy Level
1,158.00 kJ/mol1,810.00 kJ/mol
710.2162
28750
14.3.7 3rd Energy Level
2,132.00 kJ/mol3,300.00 kJ/mol
1600
34230
14.4.6 4th Energy Level
3,493.00 kJ/molNA
2780
37066
14.4.12 5th Energy Level
14.4.17 6th Energy Level
14.4.21 7th Energy level
14.4.28 8th Energy Level
14.4.36 9th Energy Level
14.4.42 10th Energy Level
14.6.1 11th Energy Level
14.9.2 12th Energy Level
15.5.2 13th Energy Level
16.4.3 14th Energy Level
16.5.3 15th Energy Level
16.6.2 16th Energy Level
16.7.4 17th Energy Level
16.9.1 18th Energy Level
16.13.1 19th Energy Level
16.17.1 20th Energy Level
17.2.1 21st Energy Level
18.1.2 22nd Energy Level
18.2.1 23rd Energy Level
18.3.1 24th Energy Level
18.5.1 25th Energy Level
18.5.3 26th Energy Level
18.6.1 27th Energy Level
18.7.3 28th Energy Level
18.8.2 29th Energy Level
18.8.4 30th Energy Level
18.9 Electrochemical Equivalent
3.02 g/amp-hr3.74 g/amp-hr
0.16812
8.3209
18.10 Electron Work Function
18.12 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Flammability, Ionization, Solubility
19 Atomic
19.1 Atomic Number
19.2 Electron Configuration
[Rn] 5f7 7s2
[Xe] 4f14 5d10 6s2
19.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Rhombohedral (RHO)
19.3.2 Crystal Lattice
19.4 Atom
19.4.1 Number of Protons
19.5.3 Number of Neutrons
20.1.3 Number of Electrons
20.2 Radius of an Atom
20.2.1 Atomic Radius
173.00 pm151.00 pm
112
265
20.2.4 Covalent Radius
180.00 pm132.00 pm
96
260
20.4.1 Van der Waals Radius
244.00 pm155.00 pm
139
348
20.5 Atomic Weight
243.00 amu200.59 amu
6.94
294
21.2 Atomic Volume
17.86 cm3/mol14.82 cm3/mol
1.39
71.07
21.3 Adjacent Atomic Numbers
21.3.1 Previous Element
21.3.2 Next Element
21.4 Valence Electron Potential
44.00 (-eV)28.20 (-eV)
8
392.42
21.5 Lattice Constant
346.81 pm300.50 pm
228.58
891.25
21.6 Lattice Angles
21.7 Lattice C/A Ratio
22 Mechanical
22.1 Density
22.1.1 Density At Room Temperature
12.00 g/cm313.53 g/cm3
0.534
40.7
23.1.3 Density When Liquid (at m.p.)
23.4 Tensile Strength
23.5 Viscosity
23.6 Vapor Pressure
23.6.1 Vapor Pressure at 1000 K
23.8.1 Vapor Pressure at 2000 K
24.2 Elasticity properties
24.2.1 Shear Modulus
24.6.2 Bulk Modulus
25.1.1 Young's Modulus
25.4 Poisson Ratio
25.5 Other Mechanical Properties
26 Magnetic
26.1 Magnetic Characteristics
26.1.1 Specific Gravity
26.3.1 Magnetic Ordering
26.3.2 Permeability
26.4.2 Susceptibility
26.5 Electrical Properties
26.5.1 Electrical Property
26.5.2 Resistivity
0.69 nΩ·m961.00 nΩ·m
0.18
961
26.6.1 Electrical Conductivity
0.02 106/cm Ω0.01 106/cm Ω
0.00666
0.63
26.7.1 Electron Affinity
27 Thermal
27.1 Specific Heat
0.11 J/(kg K)0.14 J/(kg K)
0.11
3.6
27.3 Molar Heat Capacity
62.70 J/mol·K27.98 J/mol·K
16.443
62.7
27.5 Thermal Conductivity
10.00 W/m·K8.30 W/m·K
6.3
429
27.9 Critical Temperature
27.10 Thermal Expansion
27.12 Enthalpy
27.12.1 Enthalpy of Vaporization
NA56.90 kJ/mol
7.32
799.1
28.1.2 Enthalpy of Fusion
14.39 kJ/mol2.29 kJ/mol
2.1
35.23
28.1.4 Enthalpy of Atomization
268.00 kJ/mol61.50 kJ/mol
61.5
837
28.2 Standard Molar Entropy
NA75.80 J/mol.K
9.5
198.1