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Iron vs Thallium


Thallium vs Iron


Periodic Table

Symbol
Fe  
Tl  

Group Number
8  
10
13  
5

Period Number
4  
6  

Block
d block  
p block  

Element Family
Transition Metal  
Post-​Transition  

CAS Number
7439896  
99+
7440280  
99+

Space Group Name
Im_ 3m  
P63/mmc  

Space Group Number
229.00  
2
194.00  
7

Facts

Interesting Facts
  • Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
  • The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.
  
  • Compounds of Thallium metal are highly Toxic.
  • Thallium metal is being suspected as a human carcinogen.
  

Sources
Earth's crust, Found in Minerals  
Found As a By-product, Ores of metals, Ores of Minerals  

History
  
  

Who Discovered
-  
William Crookes  

Discovery
Before 5000 BC  
In 1861  

Abundance
  
  

Abundance In Universe
0.11 %  
1
0.00 %  
33

Abundance In Sun
0.10 %  
1
0.00 %  
26

Abundance In Meteorites
22.00 %  
1
0.00 %  
99+

Abundance In Earth's Crust
6.30 %  
2
0.00 %  
99+

Abundance In Oceans
0.00 %  
12
0.00 %  
34

Abundance In Humans
0.01 %  
6
0.00 %  
24

Uses

Uses & Benefits
  • Iron metal alloy steel is used in the application of civil engineering and manufacturing.
  • Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.
  
  • 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, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Chemical Industry  

Medical Uses
Pharmaceutical Industry, Surgical Instruments Manufacturing  
Medical Research  

Other Uses
Alloys, Sculptures, Statues  
Alloys  

Biological Properties
  
  

Toxicity
Non Toxic  
Highly Toxic  

Present in Human Body
Yes  
Yes  

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

In Bone
380.00 p.p.m.  
5
0.00 p.p.m.  
38

Physical

Melting Point
1,535.00 °C  
25
303.50 °C  
99+

Boiling Point
2,750.00 °C  
39
1,457.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Gray  
Silvery White  

Luster
Metallic  
-  

Hardness
  
  

Mohs Hardness
4.00  
11
1.20  
21

Brinell Hardness
200.00 MPa  
99+
26.50 MPa  
99+

Vickers Hardness
608.00 MPa  
27
120.00 MPa  
99+

Speed of Sound
5,120.00 m/s  
12
818.00 m/s  
99+

Optical Properties
  
  

Refractive Index
2.60  
4
1.90  
18

Reflectivity
65.00 %  
18
8.00 %  
37

Allotropes
Yes  
No  

α Allotropes
Ferrite (alpha Iron)  
-  

β Allotropes
beta Iron  
-  

γ Allotropes
gamma Iron  
-  

Chemical

Chemical Formula
Fe  
Tl  

Isotopes
  
  

Known Isotopes
26  
13
32  
7

Electronegativity
  
  

Pauling Electronegativity
1.83  
15
1.62  
22

Sanderson Electronegativity
2.20  
8
2.25  
6

Allred Rochow Electronegativity
1.64  
9
1.44  
18

Mulliken-Jaffe Electronegativity
1.83  
16
1.96  
11

Allen Electronegativity
1.80  
15
1.79  
16

Electropositivity
  
  

Pauling Electropositivity
2.17  
99+
2.38  
33

Ionization Energies
  
  

1st Energy Level
762.50 kJ/mol  
17
589.40 kJ/mol  
99+

2nd Energy Level
1,561.90 kJ/mol  
37
1,971.00 kJ/mol  
14

3rd Energy Level
2,957.00 kJ/mol  
29
2,878.00 kJ/mol  
32

4th Energy Level
5,290.00 kJ/mol  
25
5,890.00 kJ/mol  
17

5th Energy Level
7,240.00 kJ/mol  
25
5,890.00 kJ/mol  
99+

6th Energy Level
9,560.00 kJ/mol  
20
5,890.00 kJ/mol  
99+

7th Energy level
12,060.00 kJ/mol  
15
5,890.00 kJ/mol  
99+

8th Energy Level
14,580.00 kJ/mol  
14
5,890.00 kJ/mol  
99+

9th Energy Level
22,540.00 kJ/mol  
5
5,890.00 kJ/mol  
99+

10th Energy Level
25,290.00 kJ/mol  
8
5,890.00 kJ/mol  
99+

11th Energy Level
28,000.00 kJ/mol  
9
5,890.00 kJ/mol  
99+

12th Energy Level
31,920.00 kJ/mol  
31
5,890.00 kJ/mol  
99+

13th Energy Level
34,830.00 kJ/mol  
9
5,890.00 kJ/mol  
99+

14th Energy Level
37,840.00 kJ/mol  
11
5,890.00 kJ/mol  
37

15th Energy Level
44,100.00 kJ/mol  
99+
58,900.00 kJ/mol  
99+

16th Energy Level
47,206.00 kJ/mol  
99+
58,900.00 kJ/mol  
38

17th Energy Level
122,200.00 kJ/mol  
1
589.40 kJ/mol  
99+

18th Energy Level
131,000.00 kJ/mol  
2
5,890.00 kJ/mol  
99+

19th Energy Level
140,500.00 kJ/mol  
3
589.40 kJ/mol  
99+

20th Energy Level
152,600.00 kJ/mol  
5
589.00 kJ/mol  
99+

21st Energy Level
163,000.00 kJ/mol  
5
589.40 kJ/mol  
99+

22nd Energy Level
173,600.00 kJ/mol  
4
589.00 kJ/mol  
99+

23rd Energy Level
188,100.00 kJ/mol  
4
589.40 kJ/mol  
99+

24th Energy Level
195,200.00 kJ/mol  
1
589.40 kJ/mol  
99+

25th Energy Level
762.00 kJ/mol  
15
589.40 kJ/mol  
99+

26th Energy Level
762.50 kJ/mol  
15
589.40 kJ/mol  
99+

27th Energy Level
762.50 kJ/mol  
14
589.40 kJ/mol  
99+

28th Energy Level
762.50 kJ/mol  
20
589.40 kJ/mol  
99+

29th Energy Level
762.50 kJ/mol  
20
589.40 kJ/mol  
99+

30th Energy Level
762.00 kJ/mol  
15
589.40 kJ/mol  
99+

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

Electron Work Function
4.70 eV  
15
3.84 eV  
39

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

Atomic

Atomic Number
26  
99+
81  
35

Electron Configuration
[Ar] 3d6 4s2  
[Xe] 4f14 5d10 6s2 6p1  

Crystal Structure
Body Centered Cubic (BCC)  
Hexagonal Close Packed (HCP)  

Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
26  
99+
81  
35

Number of Neutrons
30  
99+
123  
21

Number of Electrons
26  
99+
81  
35

Radius of an Atom
  
  

Atomic Radius
126.00 pm  
99+
170.00 pm  
24

Covalent Radius
132.00 pm  
99+
145.00 pm  
99+

Van der Waals Radius
200.00 pm  
35
196.00 pm  
37

Atomic Weight
55.85 amu  
99+
204.38 amu  
31

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

Adjacent Atomic Numbers
  
  

Previous Element
Manganese
  
Mercury
  

Next Element
Cobalt
  
Lead
  

Valence Electron Potential
67.00 (-eV)  
20
9.60 (-eV)  
99+

Lattice Constant
286.65 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
1.35  
99+
1.60  
23

Mechanical

Density
  
  

Density At Room Temperature
7.87 g/cm3  
99+
11.85 g/cm3  
33

Density When Liquid (at m.p.)
6.98 g/cm3  
99+
11.22 g/cm3  
33

Tensile Strength
11,000.00 MPa  
1
47.00 MPa  
39

Viscosity
0.00  
19
0.00  
22

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
30
16.90 (Pa)  
5

Vapor Pressure at 2000 K
36.80 (Pa)  
5
0.00 (Pa)  
38

Elasticity properties
  
  

Shear Modulus
82.00 GPa  
11
2.80 GPa  
99+

Bulk Modulus
170.00 GPa  
10
43.00 GPa  
33

Young's Modulus
211.00 GPa  
9
8.00 GPa  
99+

Poisson Ratio
0.29  
15
0.45  
2

Other Mechanical Properties
Ductile, Malleable, Weldable  
Ductile, Sectile  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
7.20  
99+
11.85  
35

Magnetic Ordering
Ferromagnetic  
Diamagnetic  

Permeability
0.01 H/m  
1
0.00 H/m  
17

Susceptibility
200,000.00  
1
0.00  
28

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
96.10 nΩ·m  
32
0.18 nΩ·m  
99+

Electrical Conductivity
0.10 106/cm Ω  
24
0.06 106/cm Ω  
37

Electron Affinity
15.70 kJ/mol  
40
19.20 kJ/mol  
38

Thermal

Specific Heat
0.44 J/(kg K)  
13
0.13 J/(kg K)  
40

Molar Heat Capacity
25.10 J/mol·K  
99+
26.32 J/mol·K  
37

Thermal Conductivity
80.40 W/m·K  
22
46.10 W/m·K  
33

Critical Temperature
1,811.00 K  
29
577.00 K  
99+

Thermal Expansion
11.80 µm/(m·K)  
99+
29.90 µm/(m·K)  
12

Enthalpy
  
  

Enthalpy of Vaporization
351.00 kJ/mol  
33
162.10 kJ/mol  
99+

Enthalpy of Fusion
14.90 kJ/mol  
23
4.27 kJ/mol  
99+

Enthalpy of Atomization
414.20 kJ/mol  
24
179.90 kJ/mol  
99+

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

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