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Polonium Titanium Comparison


Titanium Polonium comparison


Periodic Table

Symbol
Po   
Ti   

Group Number
16   
2
4   
14

Period Number
6   
4   

Block
p block   
d block   

Element Family
Post-​Transition   
Transition Metal   

CAS Number
7440086   
99+
7440326   
99+

Space Group Name
Pm-3m   
P63/mmc   

Space Group Number
221.00   
3
194.00   
5

Facts

Interesting Facts
  • Polonium was the first radioactive element to be discovered.
  • Polonium element and its compounds are highly radioactive.
  • Its alloy with Beryllium provides source of neutrons.
  
  • The only metal which burns in Nitrogen is Titanium.
  • Titanium is also known as corrosion resistant metal.
  

Sources
Mining, Ores of metals   
Found in Minerals, Mining   

History
  
  

Who Discovered
Pierre Curie and Marie Curie   
W. Gregor & J. Berzelius   

Discovery
In 1898   
In 1791   

Abundance
  
  

Abundance In Universe
Not Available   
3 * 10-4 %   
9

Abundance In Sun
~-9999 %   
~0.0004 %   
9

Abundance In Meteorites
Not Available   
0.05 %   
11

Abundance In Earth's Crust
Not Available   
0.66 %   
7

Abundance In Oceans
0.00 %   
99+
0.00 %   
15

Uses

Uses & Benefits
  • Polonium metal has different Allotropes, it is used in antistatic devices and for research purpose.
  • A 1 gram of Polonium can reach a temperature of 500°C, hence it is used as a heat source for space equipment.
  
  • Its alloys are used in spacecraft, aircraft and ammunition industry.
  • Its pipes are used in distillation plants, submarines, hulls of big ships, etc.
  

Industrial Uses
Aerospace Industry, Ammunition Industry   
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   

Medical Uses
NA   
Dentistry, Surgical Instruments Manufacturing   

Other Uses
Alloys   
Alloys, Jewellery, Sculptures, Statues   

Biological Properties
  
  

Toxicity
Highly Toxic   
Non Toxic   

Present in Human Body
No   
Yes   

In Blood
0.00 Blood/mg dm-3   
37
0.05 Blood/mg dm-3   
16

In Bone
0.00 p.p.m.   
36
Not Available   

Physical Properties

Melting Point
254.00 °C   
99+
1,660.00 °C   
18

Boiling Point
962.00 °C   
99+
3,287.00 °C   
22

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery Gray-White   

Luster
NA   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
6.00   
6

Brinell Hardness
Not Available   
716.00 MPa   
15

Vickers Hardness
Not Available   
830.00 MPa   
14

Speed of Sound
Not Available   
5,090.00 m/s   
9

Optical Properties
  
  

Allotropes
Yes   
No   

α Allotropes
α-polonium   
Not Available   

β Allotropes
β-polonium   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Po   
Ti   

Isotopes
  
  

Known Isotopes
29   
10
23   
16

Electronegativity
  
  

Pauling Electronegativity
2.00   
7
1.54   
26

Sanderson Electronegativity
Not Available   
1.09   
20

Allred Rochow Electronegativity
1.76   
2
1.32   
23

Mulliken-Jaffe Electronegativity
2.48   
1
Not Available   

Allen Electronegativity
2.19   
2
1.38   
32

Electropositivity
  
  

Pauling Electropositivity
2.00   
99+
2.46   
28

Ionization Energies
  
  

1st Energy Level
812.10 kJ/mol   
14
658.80 kJ/mol   
39

2nd Energy Level
Not Available   
1,309.80 kJ/mol   
99+

3rd Energy Level
Not Available   
2,652.50 kJ/mol   
99+

4th Energy Level
Not Available   
4,174.60 kJ/mol   
32

5th Energy Level
Not Available   
9,581.00 kJ/mol   
5

6th Energy Level
Not Available   
11,533.00 kJ/mol   
6

7th Energy level
Not Available   
13,590.00 kJ/mol   
6

8th Energy Level
Not Available   
16,440.00 kJ/mol   
8

9th Energy Level
Not Available   
18,530.00 kJ/mol   
11

10th Energy Level
Not Available   
20,833.00 kJ/mol   
15

11th Energy Level
Not Available   
25,575.00 kJ/mol   
14

12th Energy Level
Not Available   
28,125.00 kJ/mol   
14

13th Energy Level
Not Available   
76,015.00 kJ/mol   
1

14th Energy Level
Not Available   
83,280.00 kJ/mol   
2

15th Energy Level
Not Available   
90,880.00 kJ/mol   
3

16th Energy Level
Not Available   
100,700.00 kJ/mol   
4

17th Energy Level
Not Available   
109,100.00 kJ/mol   
5

18th Energy Level
Not Available   
117,800.00 kJ/mol   
6

19th Energy Level
Not Available   
129,900.00 kJ/mol   
7

20th Energy Level
Not Available   
137,530.00 kJ/mol   
9

Electrochemical Equivalent
3.90 g/amp-hr   
8
0.45 g/amp-hr   
99+

Electron Work Function
Not Available   
4.33 eV   
17

Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Chemical Stability, Ionization   

Atomic Properties

Atomic Number
84   
32
22   
99+

Electron Configuration
[Xe] 4f14 5d10 6s2 6p4   
[Ar] 3d2 4s2   

Crystal Structure
Monoclinic (MON)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
MON-Crystal-Structure-of-Polonium.jpg#100   
HCP-Crystal-Structure-of-Titanium.jpg#100   

Atom
  
  

Number of Protons
84   
32
22   
99+

Number of Neutrons
125   
19
26   
99+

Number of Electrons
84   
32
22   
99+

Radius of an Atom
  
  

Atomic Radius
168.00 pm   
23
147.00 pm   
34

Covalent Radius
140.00 pm   
99+
160.00 pm   
30

Van der Waals Radius
197.00 pm   
29
200.00 pm   
28

Atomic Weight
209.00 amu   
28
47.87 amu   
99+

Atomic Volume
22.23 cm3/mol   
13
10.64 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Bismuth
  
Scandium
  

Next Element
Francium
  
Vanadium
  

Valence Electron Potential
Not Available   
95.20 (-eV)   
10

Lattice Constant
335.90 pm   
99+
295.08 pm   
99+

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
9.20 g/cm3   
99+
4.51 g/cm3   
99+

Density When Liquid (at m.p.)
9.40 g/cm3   
19
4.11 g/cm3   
99+

Tensile Strength
Not Available   
434.00 MPa   
9

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 2000 K
Not Available   
0.98 (Pa)   
14

Elasticity properties
  
  

Shear Modulus
Not Available   
44.00 GPa   
17

Bulk Modulus
Not Available   
110.00 GPa   
15

Young's Modulus
Not Available   
116.00 GPa   
18

Poisson Ratio
Not Available   
0.32   
12

Other Mechanical Properties
NA   
Ductile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
9.32   
31
4.51   
99+

Magnetic Ordering
Nonmagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Poor Conductor   

Resistivity
0.40 nΩ·m   
99+
420.00 nΩ·m   
12

Electrical Conductivity
0.02 106/cm Ω   
99+
0.02 106/cm Ω   
99+

Electron Affinity
183.30 kJ/mol   
3
7.60 kJ/mol   
37

Thermal Properties

Specific Heat
0.12 J/(kg K)   
40
0.52 J/(kg K)   
9

Molar Heat Capacity
26.40 J/mol·K   
28
25.06 J/mol·K   
99+

Thermal Conductivity
20.00 W/m·K   
99+
21.90 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
23.50 µm/(m·K)   
16
8.60 µm/(m·K)   
99+

Enthalpy
  
  

Enthalpy of Vaporization
60.30 kJ/mol   
99+
429.00 kJ/mol   
15

Enthalpy of Fusion
13.00 kJ/mol   
26
15.48 kJ/mol   
19

Enthalpy of Atomization
134.00 kJ/mol   
99+
468.60 kJ/mol   
15

Standard Molar Entropy
Not Available   
27.30 J/mol.K   
99+

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