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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  
2
229.00  
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.
  
  • 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
-  
-  
Discovery
In 1898  
In 1781  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
28
Abundance In Sun
0.00 %  
26
0.00 %  
23
Abundance In Meteorites
-  
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 %  
23
0.00 %  
24
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
-  
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
Pharmaceutical Industry  
-  
Other Uses
-  
Alloys  
Biological Properties
  
  
Toxicity
Highly Toxic  
Non Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
34
0.00 Blood/mg dm-3  
31
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
40
Physical
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
1.00  
22
7.50  
2
Brinell Hardness
700.00 MPa  
17
2,000.00 MPa  
4
Vickers Hardness
140.00 MPa  
99+
3,430.00 MPa  
3
Speed of Sound
3,150.00 m/s  
37
4,620.00 m/s  
20
Optical Properties
  
  
Refractive Index
1.00  
99+
2.10  
11
Reflectivity
83.00 %  
6
62.00 %  
21
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ra  
W  
Isotopes
  
  
Known Isotopes
33  
6
33  
6
Electronegativity
  
  
Pauling Electronegativity
0.90  
99+
2.36  
3
Sanderson Electronegativity
0.89  
99+
0.98  
99+
Allred Rochow Electronegativity
0.97  
39
1.40  
20
Mulliken-Jaffe Electronegativity
0.92  
99+
2.36  
3
Allen Electronegativity
0.89  
99+
1.47  
33
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  
30
3rd Energy Level
509.30 kJ/mol  
99+
2,045.40 kJ/mol  
99+
4th Energy Level
5,093.00 kJ/mol  
27
7,700.00 kJ/mol  
8
5th Energy Level
5,090.00 kJ/mol  
99+
7,700.00 kJ/mol  
17
6th Energy Level
5,090.00 kJ/mol  
99+
7,700.00 kJ/mol  
35
7th Energy level
5,090.00 kJ/mol  
99+
7,700.00 kJ/mol  
29
8th Energy Level
5,090.00 kJ/mol  
99+
7,700.00 kJ/mol  
29
9th Energy Level
5,090.00 kJ/mol  
99+
7,700.00 kJ/mol  
25
10th Energy Level
5,090.00 kJ/mol  
99+
7,700.00 kJ/mol  
29
11th Energy Level
5,090.00 kJ/mol  
99+
7,700.00 kJ/mol  
28
12th Energy Level
5,090.00 kJ/mol  
99+
7,700.00 kJ/mol  
99+
13th Energy Level
5,090.00 kJ/mol  
99+
7,700.00 kJ/mol  
21
14th Energy Level
5,090.00 kJ/mol  
99+
770.00 kJ/mol  
99+
15th Energy Level
50,900.00 kJ/mol  
99+
77,000.00 kJ/mol  
18
16th Energy Level
50,900.00 kJ/mol  
99+
77,000.00 kJ/mol  
13
17th Energy Level
509.30 kJ/mol  
99+
770.00 kJ/mol  
34
18th Energy Level
5,090.00 kJ/mol  
99+
7,700.00 kJ/mol  
24
19th Energy Level
509.30 kJ/mol  
99+
770.00 kJ/mol  
31
20th Energy Level
509.00 kJ/mol  
99+
770.00 kJ/mol  
25
21st Energy Level
509.30 kJ/mol  
99+
770.00 kJ/mol  
99+
22nd Energy Level
509.00 kJ/mol  
99+
770.00 kJ/mol  
19
23rd Energy Level
509.30 kJ/mol  
99+
770.00 kJ/mol  
99+
24th Energy Level
509.30 kJ/mol  
99+
770.00 kJ/mol  
15
25th Energy Level
509.00 kJ/mol  
99+
770.00 kJ/mol  
14
26th Energy Level
509.30 kJ/mol  
99+
770.00 kJ/mol  
14
27th Energy Level
509.30 kJ/mol  
99+
770.00 kJ/mol  
13
28th Energy Level
509.30 kJ/mol  
99+
770.00 kJ/mol  
19
29th Energy Level
509.30 kJ/mol  
99+
770.00 kJ/mol  
19
30th Energy Level
509.00 kJ/mol  
99+
770.00 kJ/mol  
14
Electrochemical Equivalent
4.22 g/amp-hr  
6
1.14 g/amp-hr  
99+
Electron Work Function
4.30 eV  
25
4.55 eV  
18
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes, Solubility  
Atomic
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  
17
110  
28
Number of Electrons
88  
30
74  
99+
Radius of an Atom
  
  
Atomic Radius
215.00 pm  
6
139.00 pm  
99+
Covalent Radius
221.00 pm  
3
162.00 pm  
31
Van der Waals Radius
283.00 pm  
5
200.00 pm  
35
Atomic Weight
226.00 amu  
26
183.84 amu  
37
Atomic Volume
45.20 cm3/mol  
5
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  
15
316.52 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.57  
99+
1.29  
99+
Mechanical
Density
  
  
Density At Room Temperature
5.50 g/cm3  
99+
19.25 g/cm3  
16
Density When Liquid (at m.p.)
5.50 g/cm3  
99+
17.60 g/cm3  
15
Tensile Strength
40.00 MPa  
99+
370.00 MPa  
11
Viscosity
0.00  
2
0.00  
1
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
16
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
33
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
25.00 GPa  
38
161.00 GPa  
5
Bulk Modulus
43.00 GPa  
33
310.00 GPa  
4
Young's Modulus
83.00 GPa  
25
411.00 GPa  
4
Poisson Ratio
0.31  
13
0.28  
17
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
5.00  
99+
19.22  
18
Magnetic Ordering
Nonmagnetic  
Paramagnetic  
Permeability
0.00 H/m  
9
0.00 H/m  
17
Susceptibility
0.00  
18
0.00  
23
Electrical Properties
  
  
Electrical Property
-  
Superconductor  
Resistivity
100.00 nΩ·m  
31
52.80 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.19 106/cm Ω  
10
Electron Affinity
0.90 kJ/mol  
99+
78.60 kJ/mol  
15
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.13 J/(kg K)  
40
Molar Heat Capacity
20.05 J/mol·K  
99+
24.27 J/mol·K  
99+
Thermal Conductivity
18.60 W/m·K  
99+
173.00 W/m·K  
7
Critical Temperature
973.00 K  
99+
3,695.00 K  
1
Thermal Expansion
8.50 µm/(m·K)  
99+
4.50 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
113.00 kJ/mol  
99+
799.10 kJ/mol  
1
Enthalpy of Fusion
8.60 kJ/mol  
99+
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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