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Plutonium vs Scandium

Plutonium
Scandium
Scandium vs Plutonium


Periodic Table
Symbol
Pu   
Sc   
Group Number
0   
18
3   
15
Period Number
7   
4   
Block
f block   
d block   
Element Family
Actinide   
Transition Metal   
CAS Number
7440075   
99+
7440202   
99+
Space Group Name
P121/m1   
P63/mmc   
Space Group Number
11.00   
13
194.00   
5
Facts
Interesting Facts
  • Plutonium metal if obtain from ores of uranium metal.
  • Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
  
  • Scandium is known as one of the rare earth elements.
  • Scandium metal found in rare minerals called Wolframite .
  
Sources
Mining, Ores of metals   
Found in Minerals, Mining, Ores of metals, Ores of Minerals   
History
  
  
Who Discovered
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan   
Lars Fredrik Nilson   
Discovery
In Between 1940 1941   
In 1879   
Abundance
  
  
Abundance In Universe
Not Available   
3 * 10-6 %   
15
Abundance In Sun
~-9999 %   
~0.000004 %   
16
Abundance In Meteorites
Not Available   
0.00 %   
18
Abundance In Earth's Crust
Not Available   
0.00 %   
23
Abundance In Oceans
Not Available   
0.00 %   
32
Uses
Uses & Benefits
  • 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.
  
  • Uses of Scandium are limited to research purpose only. However, it has very low density and higher melting point.
  • Its compounds like scandium iodide is used in mercury vapor lamps to produce very bright white light.
  
Industrial Uses
Aerospace Industry, Ammunition Industry   
Electrical Industry, Electronic Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Alloys   
Biological Properties
  
  
Toxicity
Toxic   
Non Toxic   
Present in Human Body
No   
Yes   
In Blood
0.00 Blood/mg dm-3   
37
0.01 Blood/mg dm-3   
22
In Bone
0.00 p.p.m.   
36
0.00 p.p.m.   
34
Physical Properties
Melting Point
639.50 °C   
99+
1,539.00 °C   
24
Boiling Point
3,235.00 °C   
24
2,832.00 °C   
35
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery White   
Luster
NA   
Lustrous   
Hardness
  
  
Brinell Hardness
Not Available   
750.00 MPa   
12
Speed of Sound
2,260.00 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
Pu   
Sc   
Isotopes
  
  
Known Isotopes
20   
19
13   
26
Electronegativity
  
  
Pauling Electronegativity
1.28   
33
1.36   
29
Sanderson Electronegativity
Not Available   
1.02   
21
Allred Rochow Electronegativity
1.22   
26
1.20   
27
Allen Electronegativity
Not Available   
1.19   
36
Electropositivity
  
  
Pauling Electropositivity
2.72   
21
2.64   
25
Ionization Energies
  
  
1st Energy Level
584.70 kJ/mol   
99+
633.10 kJ/mol   
99+
2nd Energy Level
1,128.00 kJ/mol   
99+
1,235.00 kJ/mol   
99+
3rd Energy Level
2,084.00 kJ/mol   
99+
2,388.60 kJ/mol   
99+
4th Energy Level
3,338.00 kJ/mol   
99+
7,090.60 kJ/mol   
6
5th Energy Level
Not Available   
8,843.00 kJ/mol   
6
6th Energy Level
Not Available   
10,679.00 kJ/mol   
7
7th Energy level
Not Available   
13,310.00 kJ/mol   
8
8th Energy Level
Not Available   
15,250.00 kJ/mol   
11
9th Energy Level
Not Available   
17,370.00 kJ/mol   
14
10th Energy Level
Not Available   
21,726.00 kJ/mol   
13
11th Energy Level
Not Available   
24,102.00 kJ/mol   
16
12th Energy Level
Not Available   
66,320.00 kJ/mol   
2
13th Energy Level
Not Available   
73,010.00 kJ/mol   
2
14th Energy Level
Not Available   
80,160.00 kJ/mol   
3
15th Energy Level
Not Available   
89,490.00 kJ/mol   
4
16th Energy Level
Not Available   
97,400.00 kJ/mol   
5
17th Energy Level
Not Available   
105,600.00 kJ/mol   
6
18th Energy Level
Not Available   
117,000.00 kJ/mol   
7
19th Energy Level
Not Available   
124,270.00 kJ/mol   
8
Electrochemical Equivalent
2.28 g/amp-hr   
22
0.56 g/amp-hr   
99+
Electron Work Function
Not Available   
3.50 eV   
31
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity   
Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
94   
24
21   
99+
Electron Configuration
[Rn] 5f6 7s2   
[Ar] 3d1 4s2   
Crystal Structure
Monoclinic (MON)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
MON-Crystal-Structure-of-Plutonium.jpg#100   
HCP-Crystal-Structure-of-Scandium.jpg#100   
Atom
  
  
Number of Protons
94   
24
21   
99+
Number of Neutrons
150   
11
24   
99+
Number of Electrons
94   
24
21   
99+
Radius of an Atom
  
  
Atomic Radius
159.00 pm   
28
162.00 pm   
26
Covalent Radius
187.00 pm   
20
170.00 pm   
25
Van der Waals Radius
200.00 pm   
28
211.00 pm   
25
Atomic Weight
244.00 amu   
19
44.96 amu   
99+
Atomic Volume
12.32 cm3/mol   
99+
15.00 cm3/mol   
34
Adjacent Atomic Numbers
  
  
Previous Element
Neptunium
  
Calcium
  
Next Element
Americium
  
Titanium
  
Valence Electron Potential
64.90 (-eV)   
21
58.00 (-eV)   
24
Lattice Constant
618.30 pm   
4
330.90 pm   
99+
Lattice Angles
NA   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.59   
7
Mechanical Properties
Density
  
  
Density At Room Temperature
19.82 g/cm3   
13
2.99 g/cm3   
99+
Density When Liquid (at m.p.)
16.63 g/cm3   
8
2.80 g/cm3   
99+
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
26
0.00 (Pa)   
22
Vapor Pressure at 2000 K
2.20 (Pa)   
12
91.30 (Pa)   
3
Elasticity properties
  
  
Shear Modulus
43.00 GPa   
18
29.10 GPa   
24
Bulk Modulus
Not Available   
56.60 GPa   
21
Young's Modulus
96.00 GPa   
21
74.40 GPa   
26
Poisson Ratio
0.21   
32
0.28   
18
Other Mechanical Properties
Ductile, Malleable   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
19.84   
7
2.99   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Poor Conductor   
Conductor   
Resistivity
1.46 nΩ·m   
99+
562.00 nΩ·m   
10
Electrical Conductivity
0.01 106/cm Ω   
99+
0.02 106/cm Ω   
99+
Electron Affinity
Not Available   
18.10 kJ/mol   
33
Thermal Properties
Specific Heat
0.13 J/(kg K)   
39
0.60 J/(kg K)   
8
Molar Heat Capacity
35.50 J/mol·K   
3
25.52 J/mol·K   
37
Thermal Conductivity
6.74 W/m·K   
99+
15.80 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
46.70 µm/(m·K)   
6
10.20 µm/(m·K)   
39
Enthalpy
  
  
Enthalpy of Vaporization
344.00 kJ/mol   
25
314.20 kJ/mol   
28
Enthalpy of Fusion
2.82 kJ/mol   
99+
14.10 kJ/mol   
25
Enthalpy of Atomization
360.00 kJ/mol   
26
343.00 kJ/mol   
28
Standard Molar Entropy
Not Available   
34.60 J/mol.K   
99+
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