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Bismuth vs Americium

Bismuth
Americium
Americium vs Bismuth


Periodic Table
Symbol
Bi   
Am   
Group Number
15   
3
Not Available   
Period Number
6   
7   
Block
p block   
f block   
Element Family
Post-​Transition   
Actinide   
CAS Number
7440699   
22
7440359   
99+
Space Group Name
C12/m1   
P63/mmc   
Space Group Number
12.00   
12
194.00   
5
Facts
Interesting Facts
  • Bismuth metal is soluble and reacts with concentrated nitric acid.
  • It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
  
  • Americium metal is produced by bombarding Plutonium with Neutrons.
  • Americium metal was discovered as a by-product while testing an atomic bomb (Manhattan Project).
  
Sources
Found in Minerals, Mining, Ores of Minerals   
Obtained By Bombarding Plutonium with Neutrons   
History
  
  
Who Discovered
Claude François Geoffroy   
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso   
Discovery
In 1753   
In 1944   
Abundance
  
  
Abundance In Universe
7 * 10-8 %   
25
Not Available   
Abundance In Sun
~0.000006 %   
14
~-9999 %   
Abundance In Meteorites
0.00 %   
99+
Not Available   
Abundance In Earth's Crust
0.00 %   
99+
Not Available   
Abundance In Oceans
0.00 %   
24
Not Available   
Uses
Uses & Benefits
  • Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
  
  • Americium metal is used in smoke detection alarms.
  • In the future, this metal has a potential to be used in batteries of spacecrafts.
  
Industrial Uses
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
NA   
Medical Uses
Pharmaceutical Industry   
NA   
Other Uses
Alloys   
Alloys, Nuclear Research, Research Purposes   
Biological Properties
  
  
Toxicity
Low Toxic   
Toxic   
Present in Human Body
Yes   
No   
In Blood
0.02 Blood/mg dm-3   
20
0.00 Blood/mg dm-3   
37
In Bone
0.20 p.p.m.   
22
0.00 p.p.m.   
36
Physical Properties
Melting Point
271.30 °C   
99+
994.00 °C   
99+
Boiling Point
1,560.00 °C   
99+
2,607.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silver   
Silvery White   
Luster
Metallic   
NA   
Hardness
  
  
Mohs Hardness
2.25   
15
Not Available   
Brinell Hardness
70.00 MPa   
99+
Not Available   
Speed of Sound
1,790.00 m/s   
99+
Not Available   
Optical Properties
  
  
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Bi   
Am   
Isotopes
  
  
Known Isotopes
33   
6
16   
23
Electronegativity
  
  
Pauling Electronegativity
2.02   
6
1.30   
32
Sanderson Electronegativity
2.34   
3
Not Available   
Allred Rochow Electronegativity
1.67   
6
1.20   
27
Mulliken-Jaffe Electronegativity
2.15   
4
Not Available   
Allen Electronegativity
2.01   
4
Not Available   
Electropositivity
  
  
Pauling Electropositivity
1.98   
99+
2.70   
22
Ionization Energies
  
  
1st Energy Level
703.00 kJ/mol   
35
578.00 kJ/mol   
99+
2nd Energy Level
1,610.00 kJ/mol   
33
1,158.00 kJ/mol   
99+
3rd Energy Level
2,466.00 kJ/mol   
99+
2,132.00 kJ/mol   
99+
4th Energy Level
4,370.00 kJ/mol   
28
3,493.00 kJ/mol   
99+
5th Energy Level
5,400.00 kJ/mol   
30
Not Available   
6th Energy Level
8,520.00 kJ/mol   
19
Not Available   
Electrochemical Equivalent
2.60 g/amp-hr   
19
3.02 g/amp-hr   
17
Electron Work Function
4.22 eV   
22
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Atomic Properties
Atomic Number
83   
33
95   
23
Electron Configuration
[Xe] 4f14 5d10 6s2 6p3   
[Rn] 5f7 7s2   
Crystal Structure
Rhombohedral (RHO)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
RHO-Crystal-Structure-of-Bismuth.jpg#100   
DHCP-Crystal-Structure-of-Americium.jpg#100   
Atom
  
  
Number of Protons
83   
33
95   
23
Number of Neutrons
126   
18
148   
12
Number of Electrons
83   
33
95   
23
Radius of an Atom
  
  
Atomic Radius
156.00 pm   
29
173.00 pm   
21
Covalent Radius
148.00 pm   
36
180.00 pm   
21
Van der Waals Radius
207.00 pm   
26
244.00 pm   
10
Atomic Weight
208.98 amu   
29
243.00 amu   
20
Atomic Volume
21.30 cm3/mol   
14
17.86 cm3/mol   
29
Adjacent Atomic Numbers
  
  
Previous Element
Lead
  
Plutonium
  
Next Element
Polonium
  
Curium
  
Valence Electron Potential
41.90 (-eV)   
99+
44.00 (-eV)   
40
Lattice Constant
667.40 pm   
2
346.81 pm   
99+
Lattice Angles
NA   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
9.78 g/cm3   
39
12.00 g/cm3   
30
Density When Liquid (at m.p.)
10.05 g/cm3   
18
Not Available   
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
13
Elasticity properties
  
  
Shear Modulus
12.00 GPa   
99+
Not Available   
Bulk Modulus
31.00 GPa   
38
Not Available   
Young's Modulus
32.00 GPa   
99+
Not Available   
Poisson Ratio
0.33   
11
Not Available   
Other Mechanical Properties
NA   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
9.79   
30
13.67   
15
Magnetic Ordering
Diamagnetic   
Paramagnetic   
Permeability
0.00 H/m   
6
Not Available   
Susceptibility
0.00   
6
Not Available   
Electrical Properties
  
  
Electrical Property
Semiconductor   
Unknown   
Resistivity
1.29 nΩ·m   
99+
0.69 nΩ·m   
99+
Electrical Conductivity
0.01 106/cm Ω   
99+
0.02 106/cm Ω   
99+
Electron Affinity
91.20 kJ/mol   
11
Not Available   
Thermal Properties
Specific Heat
0.12 J/(kg K)   
40
0.11 J/(kg K)   
99+
Molar Heat Capacity
25.52 J/mol·K   
37
62.70 J/mol·K   
1
Thermal Conductivity
7.97 W/m·K   
99+
10.00 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
13.40 µm/(m·K)   
28
Not Available   
Enthalpy
  
  
Enthalpy of Vaporization
151.00 kJ/mol   
99+
Not Available   
Enthalpy of Fusion
10.90 kJ/mol   
33
14.39 kJ/mol   
24
Enthalpy of Atomization
207.10 kJ/mol   
99+
268.00 kJ/mol   
40
Standard Molar Entropy
56.70 J/mol.K   
24
Not Available   
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