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Radium vs Aluminium

Radium
Aluminium
Aluminium vs Radium


Periodic Table
Symbol
Ra   
Al   
Group Number
2   
16
13   
5
Period Number
7   
3   
Block
s block   
p block   
Element Family
Alkaline Earth   
Post-​Transition   
CAS Number
7440144   
99+
7429905   
99+
Space Group Name
Im_ 3m   
Fm_ 3m   
Space Group Number
229.00   
1
225.00   
2
Facts
Interesting Facts
  • Radium metal is the heaviest metal of Alkaline earth metals column.
  • Radium metal is highly radioactive and does not have any stable isotopes.
  
  • Aluminum’s abundance percentage is more as it is found in more than 260 minerals.
  • Pure Aluminum always reacts with oxygen rapidly.
  • It is a good conductor of heat and electricity and used in transmission lines.
  
Sources
Mining, Ores of metals   
By Electrolysis Process, Earth's crust, Mining   
History
  
  
Who Discovered
Not Available   
Hans Christian Oersted   
Discovery
In 1898   
In 1825   
Abundance
  
  
Abundance In Universe
Not Available   
5 * 10-3 %   
5
Abundance In Sun
~-9999 %   
~0.006 %   
5
Abundance In Meteorites
Not Available   
0.91 %   
5
Abundance In Earth's Crust
0.00 %   
99+
8.10 %   
1
Abundance In Oceans
0.00 %   
99+
0.00 %   
6
Abundance In Humans
0.00 %   
20
0.00 %   
10
Uses
Uses & Benefits
  • It is a highly radioactive metal; and sometime Radium-223 is used to treat prostate cancer.
  • It is used in luminous paints.
  
  • Aluminum is used in a various products; for example, cans, foils, kitchen utensils, window frames, beer kegs and aero plane parts, automobile parts, etc.
  
Industrial Uses
NA   
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Medical Uses
Pharmaceutical Industry   
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
Other Uses
NA   
Alloys, Jewellery, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Highly Toxic   
Non Toxic   
Present in Human Body
No   
Yes   
In Blood
Not Available   
0.39 Blood/mg dm-3   
9
In Bone
Not Available   
27.00 p.p.m.   
11
Physical Properties
Melting Point
700.00 °C   
99+
660.37 °C   
99+
Boiling Point
1,737.00 °C   
99+
2,467.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
Not Available   
2.75   
13
Brinell Hardness
Not Available   
160.00 MPa   
99+
Vickers Hardness
Not Available   
160.00 MPa   
35
Speed of Sound
Not Available   
5,000.00 m/s   
10
Optical Properties
  
  
Reflectivity
Not Available   
71.00 %   
10
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
Ra   
Al   
Isotopes
  
  
Known Isotopes
33   
6
11   
27
Electronegativity
  
  
Pauling Electronegativity
0.90   
99+
1.61   
22
Sanderson Electronegativity
Not Available   
1.71   
13
Allred Rochow Electronegativity
0.97   
38
1.47   
14
Mulliken-Jaffe Electronegativity
0.92   
20
1.83   
8
Allen Electronegativity
0.89   
99+
1.61   
20
Electropositivity
  
  
Pauling Electropositivity
3.10   
5
2.39   
32
Ionization Energies
  
  
1st Energy Level
509.30 kJ/mol   
99+
577.50 kJ/mol   
99+
2nd Energy Level
979.00 kJ/mol   
99+
1,816.70 kJ/mol   
19
3rd Energy Level
Not Available   
2,744.80 kJ/mol   
38
4th Energy Level
Not Available   
11,577.00 kJ/mol   
3
5th Energy Level
Not Available   
14,842.00 kJ/mol   
2
6th Energy Level
Not Available   
18,379.00 kJ/mol   
2
7th Energy level
Not Available   
23,326.00 kJ/mol   
2
8th Energy Level
Not Available   
27,465.00 kJ/mol   
2
9th Energy Level
Not Available   
31,853.00 kJ/mol   
2
10th Energy Level
Not Available   
38,473.00 kJ/mol   
4
11th Energy Level
Not Available   
42,647.00 kJ/mol   
5
Electrochemical Equivalent
4.22 g/amp-hr   
6
0.34 g/amp-hr   
99+
Electron Work Function
Not Available   
4.28 eV   
19
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Chemical Stability, Ionization, Radioactive Isotopes   
Atomic Properties
Atomic Number
88   
30
13   
99+
Electron Configuration
[Rn] 7s2   
[Ne] 3s2 3p1   
Crystal Structure
Body Centered Cubic (BCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Aluminium.jpg#100   
Atom
  
  
Number of Protons
88   
30
13   
99+
Number of Neutrons
138   
16
14   
99+
Number of Electrons
88   
30
13   
99+
Radius of an Atom
  
  
Atomic Radius
Not Available   
143.00 pm   
37
Covalent Radius
221.00 pm   
3
121.00 pm   
99+
Van der Waals Radius
283.00 pm   
4
184.00 pm   
34
Atomic Weight
226.00 amu   
26
26.98 amu   
99+
Atomic Volume
45.20 cm3/mol   
4
10.00 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Francium
  
Magnesium
  
Next Element
Actinium
  
Potassium
  
Valence Electron Potential
20.10 (-eV)   
99+
80.70 (-eV)   
17
Lattice Constant
514.80 pm   
13
404.95 pm   
22
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
5.50 g/cm3   
99+
2.70 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
2.38 g/cm3   
99+
Tensile Strength
Not Available   
40.00 MPa   
19
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
18
Elasticity properties
  
  
Shear Modulus
Not Available   
26.00 GPa   
29
Bulk Modulus
Not Available   
76.00 GPa   
18
Young's Modulus
Not Available   
70.00 GPa   
28
Poisson Ratio
Not Available   
0.35   
9
Other Mechanical Properties
NA   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
5.00   
99+
2.72   
99+
Magnetic Ordering
Nonmagnetic   
Paramagnetic   
Permeability
Not Available   
0.00 H/m   
4
Susceptibility
Not Available   
0.00   
3
Electrical Properties
  
  
Electrical Property
NA   
Conductor   
Resistivity
100.00 nΩ·m   
31
28.20 nΩ·m   
99+
Electrical Conductivity
Not Available   
0.38 106/cm Ω   
4
Electron Affinity
Not Available   
42.50 kJ/mol   
26
Thermal Properties
Specific Heat
0.12 J/(kg K)   
40
0.90 J/(kg K)   
5
Molar Heat Capacity
Not Available   
24.20 J/mol·K   
99+
Thermal Conductivity
18.60 W/m·K   
99+
237.00 W/m·K   
4
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
23.10 µm/(m·K)   
17
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
293.70 kJ/mol   
31
Enthalpy of Fusion
Not Available   
10.67 kJ/mol   
35
Enthalpy of Atomization
163.00 kJ/mol   
99+
322.20 kJ/mol   
31
Standard Molar Entropy
71.00 J/mol.K   
14
28.30 J/mol.K   
99+
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