Home
 Compare Metals

Radium vs Bismuth

Radium
Bismuth
Bismuth vs Radium


Periodic Table
Symbol
Ra  
Bi  
Group Number
2  
16
15  
3
Period Number
7  
6  
Block
s block  
p block  
Element Family
Alkaline Earth  
Post-​Transition  
CAS Number
7440144  
99+
7440699  
22
Space Group Name
Im_ 3m  
C12/m1  
Space Group Number
229.00  
2
12.00  
15
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.
  
  • Bismuth metal is soluble and reacts with concentrated nitric acid.
  • It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
  
Sources
Mining, Ores of metals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
-  
Claude François Geoffroy  
Discovery
In 1898  
In 1753  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
26
Abundance In Sun
0.00 %  
26
0.00 %  
14
Abundance In Meteorites
-  
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
0.00 %  
99+
0.00 %  
24
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.
  
  • Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
  
Industrial Uses
-  
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
Pharmaceutical Industry  
Pharmaceutical Industry  
Other Uses
-  
Alloys  
Biological Properties
  
  
Toxicity
Highly Toxic  
Low Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
34
0.02 Blood/mg dm-3  
20
In Bone
0.00 p.p.m.  
99+
0.20 p.p.m.  
27
Physical
Melting Point
700.00 °C  
99+
271.30 °C  
99+
Boiling Point
1,737.00 °C  
99+
1,560.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silver  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
1.00  
22
2.25  
16
Brinell Hardness
700.00 MPa  
17
70.00 MPa  
99+
Vickers Hardness
140.00 MPa  
99+
30.00 MPa  
99+
Speed of Sound
3,150.00 m/s  
37
1,790.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.00  
99+
2.50  
5
Reflectivity
83.00 %  
6
70.00 %  
13
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ra  
Bi  
Isotopes
  
  
Known Isotopes
33  
6
33  
6
Electronegativity
  
  
Pauling Electronegativity
0.90  
99+
2.02  
7
Sanderson Electronegativity
0.89  
99+
2.34  
3
Allred Rochow Electronegativity
0.97  
39
1.67  
7
Mulliken-Jaffe Electronegativity
0.92  
99+
2.15  
8
Allen Electronegativity
0.89  
99+
2.01  
5
Electropositivity
  
  
Pauling Electropositivity
3.10  
5
1.98  
99+
Ionization Energies
  
  
1st Energy Level
509.30 kJ/mol  
99+
703.00 kJ/mol  
35
2nd Energy Level
979.00 kJ/mol  
99+
1,610.00 kJ/mol  
34
3rd Energy Level
509.30 kJ/mol  
99+
2,466.00 kJ/mol  
99+
4th Energy Level
5,093.00 kJ/mol  
27
4,370.00 kJ/mol  
38
5th Energy Level
5,090.00 kJ/mol  
99+
5,400.00 kJ/mol  
99+
6th Energy Level
5,090.00 kJ/mol  
99+
8,520.00 kJ/mol  
29
7th Energy level
5,090.00 kJ/mol  
99+
7,030.00 kJ/mol  
99+
8th Energy Level
5,090.00 kJ/mol  
99+
7,030.00 kJ/mol  
37
9th Energy Level
5,090.00 kJ/mol  
99+
7,030.00 kJ/mol  
34
10th Energy Level
5,090.00 kJ/mol  
99+
7,030.00 kJ/mol  
38
11th Energy Level
5,090.00 kJ/mol  
99+
7,030.00 kJ/mol  
36
12th Energy Level
5,090.00 kJ/mol  
99+
7,030.00 kJ/mol  
99+
13th Energy Level
5,090.00 kJ/mol  
99+
7,030.00 kJ/mol  
32
14th Energy Level
5,090.00 kJ/mol  
99+
7,030.00 kJ/mol  
22
15th Energy Level
50,900.00 kJ/mol  
99+
70,300.00 kJ/mol  
28
16th Energy Level
50,900.00 kJ/mol  
99+
70,300.00 kJ/mol  
23
17th Energy Level
509.30 kJ/mol  
99+
703.00 kJ/mol  
99+
18th Energy Level
5,090.00 kJ/mol  
99+
7,030.00 kJ/mol  
34
19th Energy Level
509.30 kJ/mol  
99+
703.00 kJ/mol  
40
20th Energy Level
509.00 kJ/mol  
99+
703.00 kJ/mol  
34
21st Energy Level
509.30 kJ/mol  
99+
7,030.00 kJ/mol  
12
22nd Energy Level
509.00 kJ/mol  
99+
703.00 kJ/mol  
28
23rd Energy Level
509.30 kJ/mol  
99+
7,030.00 kJ/mol  
10
24th Energy Level
509.30 kJ/mol  
99+
703.00 kJ/mol  
27
25th Energy Level
509.00 kJ/mol  
99+
703.00 kJ/mol  
29
26th Energy Level
509.30 kJ/mol  
99+
703.00 kJ/mol  
28
27th Energy Level
509.30 kJ/mol  
99+
703.00 kJ/mol  
29
28th Energy Level
509.30 kJ/mol  
99+
703.00 kJ/mol  
34
29th Energy Level
509.30 kJ/mol  
99+
703.00 kJ/mol  
35
30th Energy Level
509.00 kJ/mol  
99+
703.00 kJ/mol  
29
Electrochemical Equivalent
4.22 g/amp-hr  
6
2.60 g/amp-hr  
23
Electron Work Function
4.30 eV  
25
4.22 eV  
29
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
88  
30
83  
33
Electron Configuration
[Rn] 7s2  
[Xe] 4f14 5d10 6s2 6p3  
Crystal Structure
Body Centered Cubic (BCC)  
Rhombohedral (RHO)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
RHO-Crystal-Structure-of-Bismuth.jpg#100  
Atom
  
  
Number of Protons
88  
30
83  
33
Number of Neutrons
138  
17
126  
19
Number of Electrons
88  
30
83  
33
Radius of an Atom
  
  
Atomic Radius
215.00 pm  
6
156.00 pm  
31
Covalent Radius
221.00 pm  
3
148.00 pm  
38
Van der Waals Radius
283.00 pm  
5
207.00 pm  
33
Atomic Weight
226.00 amu  
26
208.98 amu  
29
Atomic Volume
45.20 cm3/mol  
5
21.30 cm3/mol  
23
Adjacent Atomic Numbers
  
  
Previous Element
Francium
  
Lead
  
Next Element
Actinium
  
Polonium
  
Valence Electron Potential
20.10 (-eV)  
99+
41.90 (-eV)  
99+
Lattice Constant
514.80 pm  
15
667.40 pm  
2
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.57  
99+
1.86  
4
Mechanical
Density
  
  
Density At Room Temperature
5.50 g/cm3  
99+
9.78 g/cm3  
99+
Density When Liquid (at m.p.)
5.50 g/cm3  
99+
10.05 g/cm3  
99+
Tensile Strength
40.00 MPa  
99+
32.00 MPa  
99+
Viscosity
0.00  
2
0.00  
29
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
16
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.00 (Pa)  
33
0.00 (Pa)  
24
Elasticity properties
  
  
Shear Modulus
25.00 GPa  
38
12.00 GPa  
99+
Bulk Modulus
43.00 GPa  
33
31.00 GPa  
99+
Young's Modulus
83.00 GPa  
25
32.00 GPa  
99+
Poisson Ratio
0.31  
13
0.33  
11
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
5.00  
99+
9.79  
99+
Magnetic Ordering
Nonmagnetic  
Diamagnetic  
Permeability
0.00 H/m  
9
0.00 H/m  
20
Susceptibility
0.00  
18
0.00  
36
Electrical Properties
  
  
Electrical Property
-  
Semiconductor  
Resistivity
100.00 nΩ·m  
31
1.29 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.01 106/cm Ω  
99+
Electron Affinity
0.90 kJ/mol  
99+
91.20 kJ/mol  
13
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.12 J/(kg K)  
99+
Molar Heat Capacity
20.05 J/mol·K  
99+
25.52 J/mol·K  
99+
Thermal Conductivity
18.60 W/m·K  
99+
7.97 W/m·K  
99+
Critical Temperature
973.00 K  
99+
544.00 K  
99+
Thermal Expansion
8.50 µm/(m·K)  
99+
13.40 µm/(m·K)  
34
Enthalpy
  
  
Enthalpy of Vaporization
113.00 kJ/mol  
99+
151.00 kJ/mol  
99+
Enthalpy of Fusion
8.60 kJ/mol  
99+
10.90 kJ/mol  
39
Enthalpy of Atomization
163.00 kJ/mol  
99+
207.10 kJ/mol  
99+
Standard Molar Entropy
71.00 J/mol.K  
14
56.70 J/mol.K  
32
Periodic Table >>
<< All

Compare Alkali Metals

Alkali Metals

Alkali Metals

» More Alkali Metals

Compare Alkali Metals

» More Compare Alkali Metals
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!