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Nickel Thallium Comparison


Thallium Nickel comparison


Periodic Table

Symbol
Ni   
Tl   

Group Number
10   
8
13   
5

Period Number
4   
6   

Block
d block   
p block   

Element Family
Transition Metal   
Post-​Transition   

CAS Number
7440020   
99+
7440280   
99+

Space Group Name
Fm_ 3m   
P63/mmc   

Space Group Number
225.00   
2
194.00   
5

Facts

Interesting Facts
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • After iron, Zinc metal the second most abundant element in the earth crust.
  
  • Compounds of Thallium metal are highly Toxic.
  • Thallium metal is being suspected as a human carcinogen.
  

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

History
  
  

Who Discovered
Axel Fredrik Cronstedt   
William Crookes   

Discovery
In 1751   
In 1861   

Abundance
  
  

Abundance In Universe
6 * 10-3 %   
4
5 * 10-9 %   
32

Abundance In Sun
~0.008 %   
3
~0.0000001 %   
26

Abundance In Meteorites
1.30 %   
3
0.00 %   
99+

Abundance In Earth's Crust
0.01 %   
15
0.00 %   
99+

Abundance In Oceans
0.00 %   
13
0.00 %   
34

Abundance In Humans
0.00 %   
14
Not Available   

Uses

Uses & Benefits
  • It has corrosion resistance and hence it is used to plate other metals.
  • Its alloys are very useful; Nichrome alloy is used in the hot coil of toasters and electric oven.
  
  • 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
Automobile Industry, Electrical Industry, Electronic Industry   
Chemical Industry   

Medical Uses
NA   
Medical Research   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Toxic   
Highly Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.05 Blood/mg dm-3   
17
0.00 Blood/mg dm-3   
34

In Bone
0.70 p.p.m.   
18
0.00 p.p.m.   
33

Physical Properties

Melting Point
1,453.00 °C   
31
303.50 °C   
99+

Boiling Point
2,732.00 °C   
38
1,457.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery White   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
4.00   
10
1.20   
20

Brinell Hardness
667.00 MPa   
18
26.50 MPa   
99+

Vickers Hardness
638.00 MPa   
16
Not Available   

Speed of Sound
4,900.00 m/s   
12
818.00 m/s   
99+

Optical Properties
  
  

Reflectivity
72.00 %   
9
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
Ni   
Tl   

Isotopes
  
  

Known Isotopes
25   
14
32   
7

Electronegativity
  
  

Pauling Electronegativity
1.91   
10
1.62   
21

Sanderson Electronegativity
1.94   
10
2.25   
5

Allred Rochow Electronegativity
1.75   
3
1.44   
17

Mulliken-Jaffe Electronegativity
Not Available   
1.96   
6

Allen Electronegativity
1.88   
6
1.79   
13

Electropositivity
  
  

Pauling Electropositivity
2.09   
99+
2.38   
33

Ionization Energies
  
  

1st Energy Level
737.10 kJ/mol   
25
589.40 kJ/mol   
99+

2nd Energy Level
1,753.00 kJ/mol   
25
1,971.00 kJ/mol   
14

3rd Energy Level
3,395.00 kJ/mol   
17
2,878.00 kJ/mol   
32

4th Energy Level
5,300.00 kJ/mol   
15
Not Available   

5th Energy Level
7,339.00 kJ/mol   
15
Not Available   

6th Energy Level
10,400.00 kJ/mol   
9
Not Available   

7th Energy level
12,800.00 kJ/mol   
10
Not Available   

8th Energy Level
15,600.00 kJ/mol   
10
Not Available   

9th Energy Level
18,600.00 kJ/mol   
10
Not Available   

10th Energy Level
21,670.00 kJ/mol   
14
Not Available   

11th Energy Level
30,970.00 kJ/mol   
7
Not Available   

12th Energy Level
34,000.00 kJ/mol   
7
Not Available   

13th Energy Level
37,100.00 kJ/mol   
7
Not Available   

14th Energy Level
41,500.00 kJ/mol   
8
Not Available   

15th Energy Level
44,800.00 kJ/mol   
10
Not Available   

16th Energy Level
48,100.00 kJ/mol   
12
Not Available   

17th Energy Level
55,101.00 kJ/mol   
11
Not Available   

18th Energy Level
58,570.00 kJ/mol   
12
Not Available   

19th Energy Level
148,700.00 kJ/mol   
1
Not Available   

20th Energy Level
159,000.00 kJ/mol   
3
Not Available   

21st Energy Level
169,400.00 kJ/mol   
3
Not Available   

22nd Energy Level
182,700.00 kJ/mol   
2
Not Available   

23rd Energy Level
194,000.00 kJ/mol   
2
Not Available   

Electrochemical Equivalent
1.10 g/amp-hr   
99+
7.63 g/amp-hr   
2

Electron Work Function
5.15 eV   
2
3.84 eV   
28

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

Atomic Properties

Atomic Number
28   
99+
81   
35

Electron Configuration
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1   
[Xe] 4f14 5d10 6s2 6p1   

Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Nickel.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
28   
99+
81   
35

Number of Neutrons
31   
99+
123   
20

Number of Electrons
28   
99+
81   
35

Radius of an Atom
  
  

Atomic Radius
124.00 pm   
99+
170.00 pm   
22

Covalent Radius
124.00 pm   
99+
145.00 pm   
39

Van der Waals Radius
163.00 pm   
40
196.00 pm   
30

Atomic Weight
58.69 amu   
99+
204.38 amu   
31

Atomic Volume
6.59 cm3/mol   
99+
17.20 cm3/mol   
31

Adjacent Atomic Numbers
  
  

Previous Element
Cobalt
  
Mercury
  

Next Element
Copper
  
Lead
  

Valence Electron Potential
42.00 (-eV)   
99+
9.60 (-eV)   
99+

Lattice Constant
352.40 pm   
99+
345.66 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.60   
6

Mechanical Properties

Density
  
  

Density At Room Temperature
8.91 g/cm3   
99+
11.85 g/cm3   
31

Density When Liquid (at m.p.)
7.81 g/cm3   
29
11.22 g/cm3   
13

Tensile Strength
345.00 MPa   
11
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
31
16.90 (Pa)   
5

Vapor Pressure at 2000 K
19.50 (Pa)   
6
Not Available   

Elasticity properties
  
  

Shear Modulus
76.00 GPa   
12
2.80 GPa   
99+

Bulk Modulus
180.00 GPa   
9
43.00 GPa   
28

Young's Modulus
200.00 GPa   
11
8.00 GPa   
99+

Poisson Ratio
0.31   
13
0.45   
2

Other Mechanical Properties
Ductile   
Ductile, Sectile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
8.90   
33
11.85   
22

Magnetic Ordering
Ferromagnetic   
Diamagnetic   

Permeability
0.00 H/m   
2
Not Available   

Susceptibility
600.00   
2
Not Available   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
69.30 nΩ·m   
39
0.18 nΩ·m   
99+

Electrical Conductivity
0.14 106/cm Ω   
13
0.06 106/cm Ω   
32

Electron Affinity
112.00 kJ/mol   
6
19.20 kJ/mol   
32

Thermal Properties

Specific Heat
0.44 J/(kg K)   
13
0.13 J/(kg K)   
39

Molar Heat Capacity
26.07 J/mol·K   
31
26.32 J/mol·K   
29

Thermal Conductivity
90.90 W/m·K   
18
46.10 W/m·K   
33

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
13.40 µm/(m·K)   
28
29.90 µm/(m·K)   
12

Enthalpy
  
  

Enthalpy of Vaporization
371.80 kJ/mol   
20
162.10 kJ/mol   
99+

Enthalpy of Fusion
17.57 kJ/mol   
14
4.27 kJ/mol   
99+

Enthalpy of Atomization
422.60 kJ/mol   
17
179.90 kJ/mol   
99+

Standard Molar Entropy
29.90 J/mol.K   
99+
64.20 J/mol.K   
19

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