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Bismuth vs Strontium

Bismuth
Strontium
Strontium vs Bismuth


Periodic Table
Symbol
Bi   
Sr   
Group Number
15   
3
2   
16
Period Number
6   
5   
Block
p block   
s block   
Element Family
Post-​Transition   
Alkaline Earth   
CAS Number
7440699   
22
7440246   
99+
Space Group Name
C12/m1   
Fm_ 3m   
Space Group Number
12.00   
12
225.00   
2
Facts
Interesting Facts
  • 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.
  
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
Sources
Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Claude François Geoffroy   
William Cruickshank   
Discovery
In 1753   
In 1787   
Abundance
  
  
Abundance In Universe
7 * 10-8 %   
25
4 * 10-6 %   
14
Abundance In Sun
~0.000006 %   
14
~0.000005 %   
15
Abundance In Meteorites
0.00 %   
99+
0.00 %   
15
Abundance In Earth's Crust
0.00 %   
99+
0.04 %   
10
Abundance In Oceans
0.00 %   
24
0.00 %   
4
Abundance In Humans
Not Available   
0.00 %   
7
Uses
Uses & Benefits
  • 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.
  
  • Strontium metal is used to producing ferrite magnets as well as refining zinc.
  • By-product of nuclear reactors called Strontium-90 is a radioactive isotope; it is absorbed by tissues and destroys bone marrow and cancer growth.
  
Industrial Uses
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Ammunition Industry, Chemical Industry   
Medical Uses
Pharmaceutical Industry   
NA   
Other Uses
Alloys   
Alloys   
Biological Properties
  
  
Toxicity
Low Toxic   
Non Toxic   
Present in Human Body
Yes   
Yes   
In Blood
0.02 Blood/mg dm-3   
20
0.03 Blood/mg dm-3   
19
In Bone
0.20 p.p.m.   
22
140.00 p.p.m.   
7
Physical Properties
Melting Point
271.30 °C   
99+
769.00 °C   
99+
Boiling Point
1,560.00 °C   
99+
1,384.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silver   
Silvery White   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
2.25   
15
1.50   
18
Brinell Hardness
70.00 MPa   
99+
Not Available   
Speed of Sound
1,790.00 m/s   
99+
Not Available   
Optical Properties
  
  
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
Bi   
Sr   
Isotopes
  
  
Known Isotopes
33   
6
27   
12
Electronegativity
  
  
Pauling Electronegativity
2.02   
6
0.95   
99+
Sanderson Electronegativity
2.34   
3
0.72   
27
Allred Rochow Electronegativity
1.67   
6
0.99   
37
Mulliken-Jaffe Electronegativity
2.15   
4
1.00   
18
Allen Electronegativity
2.01   
4
0.96   
40
Electropositivity
  
  
Pauling Electropositivity
1.98   
99+
3.05   
7
Ionization Energies
  
  
1st Energy Level
703.00 kJ/mol   
35
549.50 kJ/mol   
99+
2nd Energy Level
1,610.00 kJ/mol   
33
1,064.20 kJ/mol   
99+
3rd Energy Level
2,466.00 kJ/mol   
99+
4,138.00 kJ/mol   
10
4th Energy Level
4,370.00 kJ/mol   
28
5,500.00 kJ/mol   
13
5th Energy Level
5,400.00 kJ/mol   
30
6,910.00 kJ/mol   
18
6th Energy Level
8,520.00 kJ/mol   
19
8,760.00 kJ/mol   
18
7th Energy level
Not Available   
10,230.00 kJ/mol   
19
8th Energy Level
Not Available   
11,800.00 kJ/mol   
19
9th Energy Level
Not Available   
15,600.00 kJ/mol   
17
10th Energy Level
Not Available   
17,100.00 kJ/mol   
19
11th Energy Level
Not Available   
31,270.00 kJ/mol   
6
Electrochemical Equivalent
2.60 g/amp-hr   
19
1.64 g/amp-hr   
99+
Electron Work Function
4.22 eV   
22
2.59 eV   
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Atomic Properties
Atomic Number
83   
33
38   
99+
Electron Configuration
[Xe] 4f14 5d10 6s2 6p3   
[Kr] 5s2   
Crystal Structure
Rhombohedral (RHO)   
Face Centered Cubic (FCC)   
Crystal Lattice
RHO-Crystal-Structure-of-Bismuth.jpg#100   
FCC-Crystal-Structure-of-Strontium.jpg#100   
Atom
  
  
Number of Protons
83   
33
38   
99+
Number of Neutrons
126   
18
50   
99+
Number of Electrons
83   
33
38   
99+
Radius of an Atom
  
  
Atomic Radius
156.00 pm   
29
215.00 pm   
5
Covalent Radius
148.00 pm   
36
195.00 pm   
15
Van der Waals Radius
207.00 pm   
26
249.00 pm   
7
Atomic Weight
208.98 amu   
29
87.62 amu   
99+
Atomic Volume
21.30 cm3/mol   
14
33.70 cm3/mol   
6
Adjacent Atomic Numbers
  
  
Previous Element
Lead
  
Rubidium
  
Next Element
Polonium
  
Yttrium
  
Valence Electron Potential
41.90 (-eV)   
99+
25.70 (-eV)   
99+
Lattice Constant
667.40 pm   
2
608.49 pm   
6
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
9.78 g/cm3   
39
2.64 g/cm3   
99+
Density When Liquid (at m.p.)
10.05 g/cm3   
18
2.38 g/cm3   
99+
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
121.00 (Pa)   
1
Elasticity properties
  
  
Shear Modulus
12.00 GPa   
99+
6.03 GPa   
99+
Bulk Modulus
31.00 GPa   
38
Not Available   
Young's Modulus
32.00 GPa   
99+
15.70 GPa   
99+
Poisson Ratio
0.33   
11
0.28   
17
Other Mechanical Properties
NA   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
9.79   
30
2.64   
99+
Magnetic Ordering
Diamagnetic   
Paramagnetic   
Permeability
0.00 H/m   
6
Not Available   
Susceptibility
0.00   
6
Not Available   
Electrical Properties
  
  
Electrical Property
Semiconductor   
NA   
Resistivity
1.29 nΩ·m   
99+
132.00 nΩ·m   
24
Electrical Conductivity
0.01 106/cm Ω   
99+
0.08 106/cm Ω   
26
Electron Affinity
91.20 kJ/mol   
11
5.03 kJ/mol   
38
Thermal Properties
Specific Heat
0.12 J/(kg K)   
40
0.30 J/(kg K)   
18
Molar Heat Capacity
25.52 J/mol·K   
37
26.40 J/mol·K   
28
Thermal Conductivity
7.97 W/m·K   
99+
35.40 W/m·K   
37
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
13.40 µm/(m·K)   
28
22.50 µm/(m·K)   
18
Enthalpy
  
  
Enthalpy of Vaporization
151.00 kJ/mol   
99+
150.00 kJ/mol   
99+
Enthalpy of Fusion
10.90 kJ/mol   
33
9.16 kJ/mol   
38
Enthalpy of Atomization
207.10 kJ/mol   
99+
163.20 kJ/mol   
99+
Standard Molar Entropy
56.70 J/mol.K   
24
55.00 J/mol.K   
26
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