Home

Transition Metals + -

Actinide Metals + -

Lanthanide Metals + -

Post-Transition Metals + -

Alkaline Earth Metals + -

Compare Metals

Francium vs Zirconium

Francium
Zirconium
Zirconium vs Francium


Periodic Table
Symbol
Fr   
Zr   
Group Number
1   
17
4   
14
Period Number
7   
5   
Block
s block   
d block   
Element Family
Alkali   
Transition Metal   
CAS Number
7440735   
18
7440677   
23
Space Group Name
Not Available   
P63/mmc   
Space Group Number
Not Available   
194.00   
5
Facts
Interesting Facts
  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
  
  • Zirconium metal can resist to weak acids.
  • Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  
Sources
Formed by Decay Process, Mining   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Marguerite Perey   
Martin Heinrich Klaproth   
Discovery
In 1939   
In 1789   
Abundance
  
  
Abundance In Universe
Not Available   
5 * 10-6 %   
13
Abundance In Sun
~-9999 %   
~0.000004 %   
16
Abundance In Meteorites
Not Available   
0.00 %   
17
Abundance In Earth's Crust
Not Available   
0.01 %   
14
Abundance In Oceans
Not Available   
0.00 %   
23
Abundance In Humans
Not Available   
0.00 %   
15
Uses
Uses & Benefits
  • Francium has no known uses as it has a half life of only 22 minutes.
  
  • As this metal does not absorb neutrons; It is used in nuclear power stations.
  • Its oxide is used in ultra strong ceramics. It is also used in manufacturing Crucibles.
  
Industrial Uses
NA   
Aerospace Industry, Ammunition Industry   
Medical Uses
NA   
NA   
Other Uses
NA   
Alloys, Nuclear Research, Research Purposes   
Biological Properties
  
  
Toxicity
NA   
NA   
Present in Human Body
No   
Yes   
In Blood
0.00 Blood/mg dm-3   
37
0.01 Blood/mg dm-3   
21
In Bone
0.00 p.p.m.   
36
0.10 p.p.m.   
23
Physical Properties
Melting Point
27.00 °C   
99+
1,852.00 °C   
15
Boiling Point
677.00 °C   
99+
4,377.00 °C   
11
Appearance
  
  
Physical State
Solid   
Solid   
Color
NA   
Silvery White   
Luster
NA   
Lustrous   
Hardness
  
  
Mohs Hardness
Not Available   
5.00   
8
Brinell Hardness
Not Available   
638.00 MPa   
19
Vickers Hardness
Not Available   
820.00 MPa   
15
Speed of Sound
Not Available   
3,800.00 m/s   
20
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
Fr   
Zr   
Isotopes
  
  
Known Isotopes
33   
6
24   
15
Electronegativity
  
  
Pauling Electronegativity
0.70   
99+
1.33   
30
Sanderson Electronegativity
Not Available   
0.90   
25
Allred Rochow Electronegativity
0.86   
99+
1.22   
26
Mulliken-Jaffe Electronegativity
0.68   
25
Not Available   
Allen Electronegativity
0.67   
99+
1.32   
34
Electropositivity
  
  
Pauling Electropositivity
3.30   
1
2.67   
24
Ionization Energies
  
  
1st Energy Level
380.00 kJ/mol   
99+
640.10 kJ/mol   
99+
2nd Energy Level
Not Available   
1,270.00 kJ/mol   
99+
3rd Energy Level
Not Available   
2,218.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,313.00 kJ/mol   
99+
5th Energy Level
Not Available   
7,752.00 kJ/mol   
10
6th Energy Level
Not Available   
9,500.00 kJ/mol   
15
Electrochemical Equivalent
8.32 g/amp-hr   
1
0.85 g/amp-hr   
99+
Electron Work Function
Not Available   
4.05 eV   
26
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Anti Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
87   
31
40   
99+
Electron Configuration
[Rn] 7s1   
[Kr] 4d2 5s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Zirconium.jpg#100   
Atom
  
  
Number of Protons
87   
31
40   
99+
Number of Neutrons
136   
17
51   
99+
Number of Electrons
87   
31
40   
99+
Radius of an Atom
  
  
Atomic Radius
Not Available   
160.00 pm   
27
Covalent Radius
260.00 pm   
1
175.00 pm   
23
Van der Waals Radius
348.00 pm   
1
200.00 pm   
28
Atomic Weight
223.00 amu   
27
91.22 amu   
99+
Atomic Volume
Not Available   
14.10 cm3/mol   
36
Adjacent Atomic Numbers
  
  
Previous Element
Polonium
  
Yttrium
  
Next Element
Radium
  
Niobium
  
Valence Electron Potential
8.00 (-eV)   
99+
80.00 (-eV)   
18
Lattice Constant
Not Available   
323.20 pm   
99+
Lattice Angles
NA   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.59   
8
Mechanical Properties
Density
  
  
Density At Room Temperature
1.87 g/cm3   
99+
6.52 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
5.80 g/cm3   
99+
Tensile Strength
Not Available   
330.00 MPa   
12
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
21
Elasticity properties
  
  
Shear Modulus
Not Available   
33.00 GPa   
20
Bulk Modulus
Not Available   
91.10 GPa   
17
Young's Modulus
Not Available   
88.00 GPa   
22
Poisson Ratio
Not Available   
0.34   
10
Other Mechanical Properties
NA   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
6.51   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Poor Conductor   
Conductor   
Resistivity
3.00 nΩ·m   
99+
421.00 nΩ·m   
11
Electrical Conductivity
0.03 106/cm Ω   
40
0.02 106/cm Ω   
99+
Electron Affinity
Not Available   
41.10 kJ/mol   
27
Thermal Properties
Specific Heat
Not Available   
0.27 J/(kg K)   
19
Molar Heat Capacity
Not Available   
25.36 J/mol·K   
99+
Thermal Conductivity
15.00 W/m·K   
99+
22.60 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
5.70 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
581.60 kJ/mol   
9
Enthalpy of Fusion
Not Available   
20.90 kJ/mol   
11
Enthalpy of Atomization
71.00 kJ/mol   
99+
598.00 kJ/mol   
10
Standard Molar Entropy
Not Available   
39.00 J/mol.K   
39
Periodic Table >>
<< All

Compare All Metals

All Metals

All Metals

Compare All Metals

Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!