Zinc vs Francium
Periodic Table
Symbol
Zn
Fr
Group Number
12
6
1
17
Period Number
4
7
Block
d block
s block
Element Family
Transition Metal
Alkali
CAS Number
7440666
24
7440735
18
Space Group Name
P63/mmc
Not Available
Space Group Number
194.00
5
Not Available
Facts
Interesting Facts
- Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
- The leading producers of Zinc metal are Australia, Canada, China, U.S.A and Peru.
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Formed by Decay Process, Mining
History
Who Discovered
Indian metallurgists
Marguerite Perey
Discovery
Before 1000 BCE
In 1939
Abundance
Abundance In Universe
3 * 10-5 %
11
Not Available
Abundance In Sun
~0.0002 %
10
~-9999 %
Abundance In Meteorites
0.02 %
12
Not Available
Abundance In Earth's Crust
0.01 %
16
Not Available
Abundance In Oceans
0.00 %
10
Not Available
Abundance In Humans
0.00 %
6
Not Available
Uses
Uses & Benefits
- It is mainly used for Galvanizing other metals.
- It is also used for manufacturing die-casting and it is very essential for automobile industry.
- Francium has no known uses as it has a half life of only 22 minutes.
Industrial Uses
Electrical Industry, Electronic Industry
NA
Medical Uses
Pharmaceutical Industry
NA
Other Uses
Alloys
NA
Biological Properties
Toxicity
Highly Toxic
NA
Present in Human Body
Yes
No
In Blood
7.00 Blood/mg dm-3
6
0.00 Blood/mg dm-3
37
In Bone
170.00 p.p.m.
6
0.00 p.p.m.
36
Physical Properties
Melting Point
419.58 °C
99+
27.00 °C
99+
Boiling Point
907.00 °C
99+
677.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Silvery Gray
NA
Luster
Metallic
NA
Hardness
Mohs Hardness
2.50
14
Not Available
Brinell Hardness
327.00 MPa
32
Not Available
Speed of Sound
3,850.00 m/s
18
Not Available
Optical Properties
Refractive Index
1.00
2
Not Available
Reflectivity
80.00 %
5
Not Available
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
Zn
Fr
Isotopes
Known Isotopes
25
14
33
6
Electronegativity
Pauling Electronegativity
1.65
19
0.70
99+
Sanderson Electronegativity
2.23
6
Not Available
Allred Rochow Electronegativity
1.66
7
0.86
99+
Mulliken-Jaffe Electronegativity
1.65
11
0.68
25
Allen Electronegativity
1.59
22
0.67
99+
Electropositivity
Pauling Electropositivity
2.35
35
3.30
1
Ionization Energies
1st Energy Level
906.40 kJ/mol
6
380.00 kJ/mol
99+
2nd Energy Level
1,733.30 kJ/mol
27
Not Available
3rd Energy Level
3,833.00 kJ/mol
12
Not Available
4th Energy Level
5,731.00 kJ/mol
11
Not Available
5th Energy Level
7,970.00 kJ/mol
9
Not Available
6th Energy Level
10,400.00 kJ/mol
9
Not Available
7th Energy level
12,900.00 kJ/mol
9
Not Available
8th Energy Level
16,800.00 kJ/mol
6
Not Available
9th Energy Level
19,600.00 kJ/mol
8
Not Available
10th Energy Level
23,000.00 kJ/mol
10
Not Available
11th Energy Level
26,400.00 kJ/mol
11
Not Available
12th Energy Level
29,990.00 kJ/mol
11
Not Available
13th Energy Level
40,490.00 kJ/mol
5
Not Available
14th Energy Level
43,800.00 kJ/mol
6
Not Available
15th Energy Level
47,300.00 kJ/mol
8
Not Available
16th Energy Level
52,300.00 kJ/mol
9
Not Available
17th Energy Level
55,900.00 kJ/mol
10
Not Available
18th Energy Level
59,700.00 kJ/mol
11
Not Available
19th Energy Level
67,300.00 kJ/mol
10
Not Available
20th Energy Level
171,200.00 kJ/mol
1
Not Available
21st Energy Level
179,100.00 kJ/mol
1
Not Available
Electrochemical Equivalent
1.22 g/amp-hr
99+
8.32 g/amp-hr
1
Electron Work Function
4.33 eV
17
Not Available
Other Chemical Properties
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Atomic Properties
Atomic Number
30
99+
87
31
Electron Configuration
[Ar] 3d10 4s2
[Rn] 7s1
Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
Crystal Lattice
HCP-Crystal-Structure-of-Zinc.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
30
99+
87
31
Number of Neutrons
35
99+
136
17
Number of Electrons
30
99+
87
31
Radius of an Atom
Atomic Radius
134.00 pm
99+
Not Available
Covalent Radius
122.00 pm
99+
260.00 pm
1
Van der Waals Radius
139.00 pm
99+
348.00 pm
1
Atomic Weight
65.38 amu
99+
223.00 amu
27
Atomic Volume
9.20 cm3/mol
99+
Not Available
Adjacent Atomic Numbers
Valence Electron Potential
38.90 (-eV)
99+
8.00 (-eV)
99+
Lattice Constant
266.49 pm
99+
Not Available
Lattice Angles
π/2, π/2, 2 π/3
NA
Lattice C/A Ratio
Not Available
Not Available
Mechanical Properties
Density
Density At Room Temperature
7.14 g/cm3
99+
1.87 g/cm3
99+
Density When Liquid (at m.p.)
6.57 g/cm3
37
Not Available
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure
Elasticity properties
Shear Modulus
43.00 GPa
18
Not Available
Bulk Modulus
70.00 GPa
19
Not Available
Young's Modulus
108.00 GPa
19
Not Available
Poisson Ratio
0.25
24
Not Available
Other Mechanical Properties
NA
NA
Magnetic Properties
Magnetic Characteristics
Specific Gravity
6.90
99+
Not Available
Magnetic Ordering
Diamagnetic
Paramagnetic
Electrical Properties
Electrical Property
Conductor
Poor Conductor
Resistivity
59.00 nΩ·m
40
3.00 nΩ·m
99+
Electrical Conductivity
0.17 106/cm Ω
12
0.03 106/cm Ω
40
Electron Affinity
0.00 kJ/mol
40
Not Available
Thermal Properties
Specific Heat
0.39 J/(kg K)
14
Not Available
Molar Heat Capacity
25.47 J/mol·K
39
Not Available
Thermal Conductivity
116.00 W/m·K
14
15.00 W/m·K
99+
Critical Temperature
Not Available
Not Available
Thermal Expansion
30.20 µm/(m·K)
11
Not Available
Enthalpy
Enthalpy of Vaporization
7.32 kJ/mol
99+
Not Available
Enthalpy of Fusion
7.32 kJ/mol
99+
Not Available
Enthalpy of Atomization
129.70 kJ/mol
99+
71.00 kJ/mol
99+
Standard Molar Entropy
41.60 J/mol.K
36
Not Available
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