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Radium Iron Comparison

Radium
Iron
Iron Radium comparison


Periodic Table
Symbol
Ra  
Fe  
Group Number
2  
16
8  
10
Period Number
7  
4  
Block
s block  
d block  
Element Family
Alkaline Earth  
Transition Metal  
CAS Number
7440144  
99+
7439896  
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.
  
  • Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
  • The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.
  
Sources
Mining, Ores of metals  
Earth's crust, Found in Minerals  
History
  
  
Who Discovered
-  
-  
Discovery
In 1898  
Before 5000 BC  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.11 %  
1
Abundance In Sun
0.00 %  
26
0.10 %  
1
Abundance In Meteorites
-  
22.00 %  
1
Abundance In Earth's Crust
0.00 %  
99+
6.30 %  
2
Abundance In Oceans
0.00 %  
99+
0.00 %  
12
Abundance In Humans
0.00 %  
23
0.01 %  
6
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.
  
  • Iron metal alloy steel is used in the application of civil engineering and manufacturing.
  • Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.
  
Industrial Uses
-  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
Pharmaceutical Industry  
Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
-  
Alloys, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Highly Toxic  
Non Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
34
447.00 Blood/mg dm-3  
3
In Bone
0.00 p.p.m.  
99+
380.00 p.p.m.  
5
Physical
Melting Point
700.00 °C  
99+
1,535.00 °C  
25
Boiling Point
1,737.00 °C  
99+
2,750.00 °C  
39
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
1.00  
22
4.00  
11
Brinell Hardness
700.00 MPa  
17
200.00 MPa  
99+
Vickers Hardness
140.00 MPa  
99+
608.00 MPa  
27
Speed of Sound
3,150.00 m/s  
37
5,120.00 m/s  
12
Optical Properties
  
  
Refractive Index
1.00  
99+
2.60  
4
Reflectivity
83.00 %  
6
65.00 %  
18
Allotropes
No  
Yes  
α Allotropes
-  
Ferrite (alpha Iron)  
β Allotropes
-  
beta Iron  
γ Allotropes
-  
gamma Iron  
Chemical
Chemical Formula
Ra  
Fe  
Isotopes
  
  
Known Isotopes
33  
6
26  
13
Electronegativity
  
  
Pauling Electronegativity
0.90  
99+
1.83  
15
Sanderson Electronegativity
0.89  
99+
2.20  
8
Allred Rochow Electronegativity
0.97  
39
1.64  
9
Mulliken-Jaffe Electronegativity
0.92  
99+
1.83  
16
Allen Electronegativity
0.89  
99+
1.80  
15
Electropositivity
  
  
Pauling Electropositivity
3.10  
5
2.17  
99+
Ionization Energies
  
  
1st Energy Level
509.30 kJ/mol  
99+
762.50 kJ/mol  
17
2nd Energy Level
979.00 kJ/mol  
99+
1,561.90 kJ/mol  
37
3rd Energy Level
509.30 kJ/mol  
99+
2,957.00 kJ/mol  
29
4th Energy Level
5,093.00 kJ/mol  
27
5,290.00 kJ/mol  
25
5th Energy Level
5,090.00 kJ/mol  
99+
7,240.00 kJ/mol  
25
6th Energy Level
5,090.00 kJ/mol  
99+
9,560.00 kJ/mol  
20
7th Energy level
5,090.00 kJ/mol  
99+
12,060.00 kJ/mol  
15
8th Energy Level
5,090.00 kJ/mol  
99+
14,580.00 kJ/mol  
14
9th Energy Level
5,090.00 kJ/mol  
99+
22,540.00 kJ/mol  
5
10th Energy Level
5,090.00 kJ/mol  
99+
25,290.00 kJ/mol  
8
11th Energy Level
5,090.00 kJ/mol  
99+
28,000.00 kJ/mol  
9
12th Energy Level
5,090.00 kJ/mol  
99+
31,920.00 kJ/mol  
31
13th Energy Level
5,090.00 kJ/mol  
99+
34,830.00 kJ/mol  
9
14th Energy Level
5,090.00 kJ/mol  
99+
37,840.00 kJ/mol  
11
15th Energy Level
50,900.00 kJ/mol  
99+
44,100.00 kJ/mol  
99+
16th Energy Level
50,900.00 kJ/mol  
99+
47,206.00 kJ/mol  
99+
17th Energy Level
509.30 kJ/mol  
99+
122,200.00 kJ/mol  
1
18th Energy Level
5,090.00 kJ/mol  
99+
131,000.00 kJ/mol  
2
19th Energy Level
509.30 kJ/mol  
99+
140,500.00 kJ/mol  
3
20th Energy Level
509.00 kJ/mol  
99+
152,600.00 kJ/mol  
5
21st Energy Level
509.30 kJ/mol  
99+
163,000.00 kJ/mol  
5
22nd Energy Level
509.00 kJ/mol  
99+
173,600.00 kJ/mol  
4
23rd Energy Level
509.30 kJ/mol  
99+
188,100.00 kJ/mol  
4
24th Energy Level
509.30 kJ/mol  
99+
195,200.00 kJ/mol  
1
25th Energy Level
509.00 kJ/mol  
99+
762.00 kJ/mol  
15
26th Energy Level
509.30 kJ/mol  
99+
762.50 kJ/mol  
15
27th Energy Level
509.30 kJ/mol  
99+
762.50 kJ/mol  
14
28th Energy Level
509.30 kJ/mol  
99+
762.50 kJ/mol  
20
29th Energy Level
509.30 kJ/mol  
99+
762.50 kJ/mol  
20
30th Energy Level
509.00 kJ/mol  
99+
762.00 kJ/mol  
15
Electrochemical Equivalent
4.22 g/amp-hr  
6
0.69 g/amp-hr  
99+
Electron Work Function
4.30 eV  
25
4.70 eV  
15
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Corrosion, Ionization, Solubility  
Atomic
Atomic Number
88  
30
26  
99+
Electron Configuration
[Rn] 7s2  
[Ar] 3d6 4s2  
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
26  
99+
Number of Neutrons
138  
17
30  
99+
Number of Electrons
88  
30
26  
99+
Radius of an Atom
  
  
Atomic Radius
215.00 pm  
6
126.00 pm  
99+
Covalent Radius
221.00 pm  
3
132.00 pm  
99+
Van der Waals Radius
283.00 pm  
5
200.00 pm  
35
Atomic Weight
226.00 amu  
26
55.85 amu  
99+
Atomic Volume
45.20 cm3/mol  
5
7.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Francium
  
Manganese
  
Next Element
Actinium
  
Cobalt
  
Valence Electron Potential
20.10 (-eV)  
99+
67.00 (-eV)  
20
Lattice Constant
514.80 pm  
15
286.65 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.57  
99+
1.35  
99+
Mechanical
Density
  
  
Density At Room Temperature
5.50 g/cm3  
99+
7.87 g/cm3  
99+
Density When Liquid (at m.p.)
5.50 g/cm3  
99+
6.98 g/cm3  
99+
Tensile Strength
40.00 MPa  
99+
11,000.00 MPa  
1
Viscosity
0.00  
2
0.00  
19
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
16
0.00 (Pa)  
30
Vapor Pressure at 2000 K
0.00 (Pa)  
33
36.80 (Pa)  
5
Elasticity properties
  
  
Shear Modulus
25.00 GPa  
38
82.00 GPa  
11
Bulk Modulus
43.00 GPa  
33
170.00 GPa  
10
Young's Modulus
83.00 GPa  
25
211.00 GPa  
9
Poisson Ratio
0.31  
13
0.29  
15
Other Mechanical Properties
-  
Ductile, Malleable, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
5.00  
99+
7.20  
99+
Magnetic Ordering
Nonmagnetic  
Ferromagnetic  
Permeability
0.00 H/m  
9
0.01 H/m  
1
Susceptibility
0.00  
18
200,000.00  
1
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
100.00 nΩ·m  
31
96.10 nΩ·m  
32
Electrical Conductivity
0.00 106/cm Ω  
99+
0.10 106/cm Ω  
24
Electron Affinity
0.90 kJ/mol  
99+
15.70 kJ/mol  
40
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.44 J/(kg K)  
13
Molar Heat Capacity
20.05 J/mol·K  
99+
25.10 J/mol·K  
99+
Thermal Conductivity
18.60 W/m·K  
99+
80.40 W/m·K  
22
Critical Temperature
973.00 K  
99+
1,811.00 K  
29
Thermal Expansion
8.50 µm/(m·K)  
99+
11.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
113.00 kJ/mol  
99+
351.00 kJ/mol  
33
Enthalpy of Fusion
8.60 kJ/mol  
99+
14.90 kJ/mol  
23
Enthalpy of Atomization
163.00 kJ/mol  
99+
414.20 kJ/mol  
24
Standard Molar Entropy
71.00 J/mol.K  
14
27.30 J/mol.K  
99+
Summary >>
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