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Strontium vs Flerovium

Strontium
Flerovium
Flerovium vs Strontium


Periodic Table
Symbol
Sr   
Fl   
Group Number
2   
16
14   
4
Period Number
5   
7   
Block
s block   
p block   
Element Family
Alkaline Earth   
Post-​Transition   
CAS Number
7440246   
99+
54085164   
5
Space Group Name
Fm_ 3m   
Not Available   
Space Group Number
225.00   
2
Not Available   
Facts
Interesting Facts
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
Not Available   
Sources
Found in Minerals, Mining, Ores of Minerals   
NA   
History
  
  
Who Discovered
William Cruickshank   
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory   
Discovery
In 1787   
In 1999   
Abundance
  
  
Abundance In Universe
4 * 10-6 %   
14
Not Available   
Abundance In Sun
~0.000005 %   
15
~-9999 %   
Abundance In Meteorites
0.00 %   
15
Not Available   
Abundance In Earth's Crust
0.04 %   
10
Not Available   
Abundance In Oceans
0.00 %   
4
Not Available   
Abundance In Humans
0.00 %   
7
Not Available   
Uses
Uses & Benefits
  • 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.
  
  • Currently known uses of Flerovium metal are limited to research purpose only.
  
Industrial Uses
Ammunition Industry, Chemical Industry   
NA   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Alloys, Research Purposes   
Biological Properties
  
  
Toxicity
Non Toxic   
Unknown   
Present in Human Body
Yes   
No   
In Blood
0.03 Blood/mg dm-3   
19
Not Available   
In Bone
140.00 p.p.m.   
7
Not Available   
Physical Properties
Melting Point
769.00 °C   
99+
67.00 °C   
99+
Boiling Point
1,384.00 °C   
99+
147.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Unknown   
Luster
Metallic   
Unknown Luster   
Hardness
  
  
Mohs Hardness
1.50   
18
Not Available   
Speed of Sound
Not Available   
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
Sr   
Fl   
Isotopes
  
  
Known Isotopes
27   
12
1   
34
Electronegativity
  
  
Pauling Electronegativity
0.95   
99+
Not Available   
Sanderson Electronegativity
0.72   
27
Not Available   
Allred Rochow Electronegativity
0.99   
37
Not Available   
Mulliken-Jaffe Electronegativity
1.00   
18
Not Available   
Allen Electronegativity
0.96   
40
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.05   
7
Not Available   
Ionization Energies
  
  
1st Energy Level
549.50 kJ/mol   
99+
823.90 kJ/mol   
13
2nd Energy Level
1,064.20 kJ/mol   
99+
1,601.60 kJ/mol   
34
3rd Energy Level
4,138.00 kJ/mol   
10
3,367.30 kJ/mol   
18
4th Energy Level
5,500.00 kJ/mol   
13
4,399.70 kJ/mol   
27
5th Energy Level
6,910.00 kJ/mol   
18
5,847.00 kJ/mol   
26
6th Energy Level
8,760.00 kJ/mol   
18
Not Available   
7th Energy level
10,230.00 kJ/mol   
19
Not Available   
8th Energy Level
11,800.00 kJ/mol   
19
Not Available   
9th Energy Level
15,600.00 kJ/mol   
17
Not Available   
10th Energy Level
17,100.00 kJ/mol   
19
Not Available   
11th Energy Level
31,270.00 kJ/mol   
6
Not Available   
Electrochemical Equivalent
1.64 g/amp-hr   
99+
Not Available   
Electron Work Function
2.59 eV   
99+
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
38   
99+
114   
4
Electron Configuration
[Kr] 5s2   
[Rn] 5f14 6d10 7s2 7p2   
Crystal Structure
Face Centered Cubic (FCC)   
Not Known   
Crystal Lattice
FCC-Crystal-Structure-of-Strontium.jpg#100   
Unknown-Crystal-Structure-of-Flerovium.jpg#100   
Atom
  
  
Number of Protons
38   
99+
114   
4
Number of Neutrons
50   
99+
184   
1
Number of Electrons
38   
99+
114   
4
Radius of an Atom
  
  
Atomic Radius
215.00 pm   
5
180.00 pm   
14
Covalent Radius
195.00 pm   
15
171.00 pm   
24
Van der Waals Radius
249.00 pm   
7
Not Available   
Atomic Weight
87.62 amu   
99+
289.00 amu   
3
Atomic Volume
33.70 cm3/mol   
6
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Rubidium
  
Nihonium
  
Next Element
Yttrium
  
Moscovium
  
Valence Electron Potential
25.70 (-eV)   
99+
Not Available   
Lattice Constant
608.49 pm   
6
Not Available   
Lattice Angles
π/2, π/2, π/2   
Unknown   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
2.64 g/cm3   
99+
14.00 g/cm3   
23
Density When Liquid (at m.p.)
2.38 g/cm3   
99+
Not Available   
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
121.00 (Pa)   
1
Not Available   
Elasticity properties
  
  
Shear Modulus
6.03 GPa   
99+
Not Available   
Young's Modulus
15.70 GPa   
99+
Not Available   
Poisson Ratio
0.28   
17
Not Available   
Other Mechanical Properties
NA   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
2.64   
99+
Not Available   
Magnetic Ordering
Paramagnetic   
Unknown   
Electrical Properties
  
  
Electrical Property
NA   
Unknown   
Resistivity
132.00 nΩ·m   
24
Not Available   
Electrical Conductivity
0.08 106/cm Ω   
26
Not Available   
Electron Affinity
5.03 kJ/mol   
38
Not Available   
Thermal Properties
Specific Heat
0.30 J/(kg K)   
18
Not Available   
Molar Heat Capacity
26.40 J/mol·K   
28
Not Available   
Thermal Conductivity
35.40 W/m·K   
37
Not Available   
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
22.50 µm/(m·K)   
18
Not Available   
Enthalpy
  
  
Enthalpy of Vaporization
150.00 kJ/mol   
99+
Not Available   
Enthalpy of Fusion
9.16 kJ/mol   
38
Not Available   
Enthalpy of Atomization
163.20 kJ/mol   
99+
Not Available   
Standard Molar Entropy
55.00 J/mol.K   
26
Not Available   
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