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Plutonium vs Thallium


Thallium vs Plutonium


Periodic Table

Symbol
Pu  
Tl  

Group Number
0  
18
13  
5

Period Number
7  
6  

Block
f block  
p block  

Element Family
Actinide  
Post-​Transition  

CAS Number
7440075  
99+
7440280  
99+

Space Group Name
P121/m1  
P63/mmc  

Space Group Number
11.00  
16
194.00  
7

Facts

Interesting Facts
  • Plutonium metal if obtain from ores of uranium metal.
  • Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
  
  • Compounds of Thallium metal are highly Toxic.
  • Thallium metal is being suspected as a human carcinogen.
  

Sources
Mining, Ores of metals  
Found As a By-product, Ores of metals, Ores of Minerals  

History
  
  

Who Discovered
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan  
William Crookes  

Discovery
In Between 1940 1941  
In 1861  

Abundance
  
  

Abundance In Universe
0.00 %  
40
0.00 %  
33

Abundance In Sun
0.00 %  
21
0.00 %  
26

Abundance In Meteorites
-  
0.00 %  
99+

Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+

Abundance In Oceans
-  
0.00 %  
34

Abundance In Humans
0.00 %  
24
0.00 %  
24

Uses

Uses & Benefits
  • Plutonium was used in atomic bombs and still it is being used in various weapons and Ammunition industry.
  • It is also used in nuclear power plant as source of energy for space missions.
  
  • Thallium is a toxic metal and hence it has limited uses. Thallium metal is mostly used for producing photoelectric cells.
  • In thermometer’s mercury alloy has 8% of thallium, as it has a melting point lower than 20°C.
  

Industrial Uses
Aerospace Industry, Ammunition Industry  
Chemical Industry  

Medical Uses
-  
Medical Research  

Other Uses
Alloys  
Alloys  

Biological Properties
  
  

Toxicity
Toxic  
Highly Toxic  

Present in Human Body
No  
Yes  

In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
37

In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
38

Physical

Melting Point
639.50 °C  
99+
303.50 °C  
99+

Boiling Point
3,235.00 °C  
25
1,457.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery White  
Silvery White  

Luster
-  
-  

Hardness
  
  

Mohs Hardness
4.00  
11
1.20  
21

Brinell Hardness
627.00 MPa  
22
26.50 MPa  
99+

Vickers Hardness
617.00 MPa  
26
120.00 MPa  
99+

Speed of Sound
2,260.00 m/s  
99+
818.00 m/s  
99+

Optical Properties
  
  

Refractive Index
1.90  
18
1.90  
18

Reflectivity
68.00 %  
15
8.00 %  
37

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Pu  
Tl  

Isotopes
  
  

Known Isotopes
20  
19
32  
7

Electronegativity
  
  

Pauling Electronegativity
1.28  
34
1.62  
22

Sanderson Electronegativity
1.28  
26
2.25  
6

Allred Rochow Electronegativity
1.22  
27
1.44  
18

Mulliken-Jaffe Electronegativity
1.30  
33
1.96  
11

Allen Electronegativity
1.28  
99+
1.79  
16

Electropositivity
  
  

Pauling Electropositivity
2.72  
21
2.38  
33

Ionization Energies
  
  

1st Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

2nd Energy Level
1,128.00 kJ/mol  
99+
1,971.00 kJ/mol  
14

3rd Energy Level
2,084.00 kJ/mol  
99+
2,878.00 kJ/mol  
32

4th Energy Level
3,338.00 kJ/mol  
99+
5,890.00 kJ/mol  
17

5th Energy Level
5,847.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

6th Energy Level
5,847.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

7th Energy level
5,840.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

8th Energy Level
5,840.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

9th Energy Level
5,840.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

10th Energy Level
5,840.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

11th Energy Level
5,840.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

12th Energy Level
58,400.00 kJ/mol  
18
5,890.00 kJ/mol  
99+

13th Energy Level
5,840.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

14th Energy Level
5,840.00 kJ/mol  
39
5,890.00 kJ/mol  
37

15th Energy Level
58,400.00 kJ/mol  
99+
58,900.00 kJ/mol  
99+

16th Energy Level
58,400.00 kJ/mol  
40
58,900.00 kJ/mol  
38

17th Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

18th Energy Level
5,840.00 kJ/mol  
99+
5,890.00 kJ/mol  
99+

19th Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

20th Energy Level
584.00 kJ/mol  
99+
589.00 kJ/mol  
99+

21st Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

22nd Energy Level
584.00 kJ/mol  
99+
589.00 kJ/mol  
99+

23rd Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

24th Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

25th Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

26th Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

27th Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

28th Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

29th Energy Level
584.70 kJ/mol  
99+
589.40 kJ/mol  
99+

30th Energy Level
584.00 kJ/mol  
99+
589.40 kJ/mol  
99+

Electrochemical Equivalent
2.28 g/amp-hr  
26
7.63 g/amp-hr  
2

Electron Work Function
3.88 eV  
38
3.84 eV  
39

Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity  
Corrosion, Ionization, Radioactive Isotopes, Solubility  

Atomic

Atomic Number
94  
24
81  
35

Electron Configuration
[Rn] 5f6 7s2  
[Xe] 4f14 5d10 6s2 6p1  

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

Crystal Lattice
MON-Crystal-Structure-of-Plutonium.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
94  
24
81  
35

Number of Neutrons
150  
12
123  
21

Number of Electrons
94  
24
81  
35

Radius of an Atom
  
  

Atomic Radius
159.00 pm  
30
170.00 pm  
24

Covalent Radius
187.00 pm  
20
145.00 pm  
99+

Van der Waals Radius
200.00 pm  
35
196.00 pm  
37

Atomic Weight
244.00 amu  
19
204.38 amu  
31

Atomic Volume
12.32 cm3/mol  
99+
17.20 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Neptunium
  
Mercury
  

Next Element
Americium
  
Lead
  

Valence Electron Potential
64.90 (-eV)  
21
9.60 (-eV)  
99+

Lattice Constant
618.30 pm  
4
345.66 pm  
99+

Lattice Angles
-  
π/2, π/2, 2 π/3  

Lattice C/A Ratio
1.74  
6
1.60  
23

Mechanical

Density
  
  

Density At Room Temperature
19.82 g/cm3  
13
11.85 g/cm3  
33

Density When Liquid (at m.p.)
16.63 g/cm3  
18
11.22 g/cm3  
33

Tensile Strength
40.00 MPa  
99+
47.00 MPa  
39

Viscosity
0.00  
25
0.00  
22

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
28
16.90 (Pa)  
5

Vapor Pressure at 2000 K
2.20 (Pa)  
12
0.00 (Pa)  
38

Elasticity properties
  
  

Shear Modulus
43.00 GPa  
18
2.80 GPa  
99+

Bulk Modulus
100.00 GPa  
16
43.00 GPa  
33

Young's Modulus
96.00 GPa  
23
8.00 GPa  
99+

Poisson Ratio
0.21  
33
0.45  
2

Other Mechanical Properties
Ductile, Malleable  
Ductile, Sectile  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
19.84  
16
11.85  
35

Magnetic Ordering
Paramagnetic  
Diamagnetic  

Permeability
0.00 H/m  
16
0.00 H/m  
17

Susceptibility
0.00  
21
0.00  
28

Electrical Properties
  
  

Electrical Property
Poor Conductor  
Conductor  

Resistivity
1.46 nΩ·m  
99+
0.18 nΩ·m  
99+

Electrical Conductivity
0.01 106/cm Ω  
99+
0.06 106/cm Ω  
37

Electron Affinity
0.60 kJ/mol  
99+
19.20 kJ/mol  
38

Thermal

Specific Heat
0.13 J/(kg K)  
40
0.13 J/(kg K)  
40

Molar Heat Capacity
35.50 J/mol·K  
4
26.32 J/mol·K  
37

Thermal Conductivity
6.74 W/m·K  
99+
46.10 W/m·K  
33

Critical Temperature
913.00 K  
99+
577.00 K  
99+

Thermal Expansion
46.70 µm/(m·K)  
6
29.90 µm/(m·K)  
12

Enthalpy
  
  

Enthalpy of Vaporization
344.00 kJ/mol  
36
162.10 kJ/mol  
99+

Enthalpy of Fusion
2.82 kJ/mol  
99+
4.27 kJ/mol  
99+

Enthalpy of Atomization
360.00 kJ/mol  
35
179.90 kJ/mol  
99+

Standard Molar Entropy
37.10 J/mol.K  
99+
64.20 J/mol.K  
20

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