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Radium vs Tungsten

Radium
Tungsten
Tungsten vs Radium


Periodic Table
Symbol
Ra   
W   
Group Number
2   
16
6   
12
Period Number
7   
6   
Block
s block   
d block   
Element Family
Alkaline Earth   
Transition Metal   
CAS Number
7440144   
99+
7440337   
99+
Space Group Name
Im_ 3m   
Im_ 3m   
Space Group Number
229.00   
1
229.00   
1
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.
  
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  
Sources
Mining, Ores of metals   
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Not Available   
Not Available   
Discovery
In 1898   
In 1781   
Abundance
  
  
Abundance In Universe
Not Available   
5 * 10-8 %   
27
Abundance In Sun
~-9999 %   
~0.0000004 %   
23
Abundance In Meteorites
Not Available   
0.00 %   
39
Abundance In Earth's Crust
0.00 %   
99+
0.00 %   
39
Abundance In Oceans
0.00 %   
99+
0.00 %   
18
Abundance In Humans
0.00 %   
20
Not Available   
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.
  
  • Tungsten and its alloys are used in high-temperature applications like welding electrodes, high-temperature furnace, etc.
  • Tungsten carbide is very hard and used in metal working, mining and petroleum industry.
  
Industrial Uses
NA   
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   
Medical Uses
Pharmaceutical Industry   
NA   
Other Uses
NA   
Alloys   
Biological Properties
  
  
Toxicity
Highly Toxic   
Non Toxic   
Present in Human Body
No   
Yes   
In Blood
Not Available   
0.00 Blood/mg dm-3   
31
In Bone
Not Available   
0.00 p.p.m.   
35
Physical Properties
Melting Point
700.00 °C   
99+
3,410.00 °C   
1
Boiling Point
1,737.00 °C   
99+
5,660.00 °C   
1
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Grayish White   
Luster
Metallic   
Lustrous   
Hardness
  
  
Mohs Hardness
Not Available   
7.50   
2
Brinell Hardness
Not Available   
2,000.00 MPa   
4
Vickers Hardness
Not Available   
3,430.00 MPa   
1
Speed of Sound
Not Available   
4,620.00 m/s   
16
Optical Properties
  
  
Reflectivity
Not Available   
62.00 %   
13
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   
W   
Isotopes
  
  
Known Isotopes
33   
6
33   
6
Electronegativity
  
  
Pauling Electronegativity
0.90   
99+
2.36   
2
Sanderson Electronegativity
Not Available   
0.98   
23
Allred Rochow Electronegativity
0.97   
38
1.40   
19
Mulliken-Jaffe Electronegativity
0.92   
20
Not Available   
Allen Electronegativity
0.89   
99+
1.47   
29
Electropositivity
  
  
Pauling Electropositivity
3.10   
5
1.64   
99+
Ionization Energies
  
  
1st Energy Level
509.30 kJ/mol   
99+
770.00 kJ/mol   
16
2nd Energy Level
979.00 kJ/mol   
99+
1,700.00 kJ/mol   
29
Electrochemical Equivalent
4.22 g/amp-hr   
6
1.14 g/amp-hr   
99+
Electron Work Function
Not Available   
4.55 eV   
13
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
88   
30
74   
99+
Electron Configuration
[Rn] 7s2   
[Xe] 4f14 5d4 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Body Centered Cubic (BCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
88   
30
74   
99+
Number of Neutrons
138   
16
110   
27
Number of Electrons
88   
30
74   
99+
Radius of an Atom
  
  
Atomic Radius
Not Available   
139.00 pm   
39
Covalent Radius
221.00 pm   
3
162.00 pm   
29
Van der Waals Radius
283.00 pm   
4
200.00 pm   
28
Atomic Weight
226.00 amu   
26
183.84 amu   
37
Atomic Volume
45.20 cm3/mol   
4
9.53 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Francium
  
Tantalum
  
Next Element
Actinium
  
Rhenium
  
Valence Electron Potential
20.10 (-eV)   
99+
140.00 (-eV)   
5
Lattice Constant
514.80 pm   
13
316.52 pm   
99+
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+
19.25 g/cm3   
16
Density When Liquid (at m.p.)
Not Available   
17.60 g/cm3   
5
Tensile Strength
Not Available   
370.00 MPa   
10
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
32
Elasticity properties
  
  
Shear Modulus
Not Available   
161.00 GPa   
5
Bulk Modulus
Not Available   
310.00 GPa   
4
Young's Modulus
Not Available   
411.00 GPa   
4
Poisson Ratio
Not Available   
0.28   
17
Other Mechanical Properties
NA   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
5.00   
99+
19.22   
9
Magnetic Ordering
Nonmagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
NA   
Superconductor   
Resistivity
100.00 nΩ·m   
31
52.80 nΩ·m   
99+
Electrical Conductivity
Not Available   
0.19 106/cm Ω   
10
Electron Affinity
Not Available   
78.60 kJ/mol   
13
Thermal Properties
Specific Heat
0.12 J/(kg K)   
40
0.13 J/(kg K)   
39
Molar Heat Capacity
Not Available   
24.27 J/mol·K   
99+
Thermal Conductivity
18.60 W/m·K   
99+
173.00 W/m·K   
7
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
4.50 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
799.10 kJ/mol   
1
Enthalpy of Fusion
Not Available   
35.23 kJ/mol   
1
Enthalpy of Atomization
163.00 kJ/mol   
99+
837.00 kJ/mol   
1
Standard Molar Entropy
71.00 J/mol.K   
14
32.60 J/mol.K   
99+
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