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Indium Samarium Comparison


Samarium Indium comparison


Periodic Table

Symbol
In  
Sm  

Group Number
13  
5
3  
15

Period Number
5  
6  

Block
p block  
f block  

Element Family
Post-​Transition  
Lanthanide  

CAS Number
7440746  
17
7440199  
99+

Space Group Name
I4/mmm  
R_ 3m  

Space Group Number
139.00  
11
166.00  
9

Facts

Interesting Facts
  • Luster of Indium is bright in nature.
  • Reich and richer were looking for thallium in zinc metal and they discovered Indium metal.
  
  • Samarium metals helps stimulating body metabolism.
  • Samarium metals was 1st observed by Jean Charles Galissard de Marignac in Dydimia in 1853.
  

Sources
Mining, Ores of metals  
Found in Minerals, Mining, Ores of Minerals  

History
  
  

Who Discovered
Ferdinand Reich and Hieronymous Theodor Richter  
Lecoq de Boisbaudran  

Discovery
In 1863  
In 1879  

Abundance
  
  

Abundance In Universe
0.00 %  
29
0.00 %  
20

Abundance In Sun
0.00 %  
23
0.00 %  
26

Abundance In Meteorites
0.00 %  
99+
0.00 %  
37

Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
29

Abundance In Oceans
0.00 %  
99+
0.00 %  
40

Abundance In Humans
0.00 %  
16
0.00 %  
24

Uses

Uses & Benefits
  • It is used to produce indium tin oxide (ITO), it is used in manufacturing touch screens, flat screen TVs and solar panels.
  • Its nitride, phosphide and antimonide are used in transistors and microchips.
  
  • Magnets of Samarium cobalt alloy are stronger than that of Iron and hence, they are used in microwave application.
  • Samarium metal also used in optical lasers and infrared absorbing glasses and as a neutron absorber.
  

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

Medical Uses
Medical Research  
-  

Other Uses
Alloys, In Nuclear Reactors  
Alloys, In Nuclear Reactors  

Biological Properties
  
  

Toxicity
Non Toxic  
Slightly Toxic  

Present in Human Body
Yes  
Yes  

In Blood
0.00 Blood/mg dm-3  
40
0.01 Blood/mg dm-3  
22

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

Physical

Melting Point
156.61 °C  
99+
1,072.00 °C  
99+

Boiling Point
2,000.00 °C  
99+
1,900.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery Gray  
Silvery White  

Luster
Lustrous  
Lustrous  

Hardness
  
  

Mohs Hardness
1.20  
21
5.50  
7

Brinell Hardness
8.80 MPa  
99+
441.00 MPa  
32

Vickers Hardness
0.01 MPa  
99+
412.00 MPa  
40

Speed of Sound
1,215.00 m/s  
99+
2,130.00 m/s  
99+

Optical Properties
  
  

Refractive Index
3.41  
1
1.80  
22

Reflectivity
83.00 %  
6
65.00 %  
18

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
In  
Sm  

Isotopes
  
  

Known Isotopes
35  
4
30  
9

Electronegativity
  
  

Pauling Electronegativity
1.78  
17
1.17  
99+

Sanderson Electronegativity
2.14  
9
1.17  
33

Allred Rochow Electronegativity
1.49  
14
1.07  
33

Mulliken-Jaffe Electronegativity
1.76  
18
1.17  
40

Allen Electronegativity
1.66  
21
1.17  
99+

Electropositivity
  
  

Pauling Electropositivity
2.22  
38
2.83  
14

Ionization Energies
  
  

1st Energy Level
558.30 kJ/mol  
99+
544.50 kJ/mol  
99+

2nd Energy Level
1,820.70 kJ/mol  
19
1,070.00 kJ/mol  
99+

3rd Energy Level
2,704.00 kJ/mol  
40
2,260.00 kJ/mol  
99+

4th Energy Level
5,210.00 kJ/mol  
26
3,990.00 kJ/mol  
99+

5th Energy Level
5,580.00 kJ/mol  
99+
5,445.00 kJ/mol  
99+

6th Energy Level
5,580.00 kJ/mol  
99+
5,445.00 kJ/mol  
99+

7th Energy level
5,580.00 kJ/mol  
99+
5,445.00 kJ/mol  
99+

8th Energy Level
5,580.00 kJ/mol  
99+
5,400.00 kJ/mol  
99+

9th Energy Level
5,580.00 kJ/mol  
99+
5,440.00 kJ/mol  
99+

10th Energy Level
5,580.00 kJ/mol  
99+
5,445.00 kJ/mol  
99+

11th Energy Level
5,580.00 kJ/mol  
99+
5,445.00 kJ/mol  
99+

12th Energy Level
5,580.00 kJ/mol  
99+
5,440.00 kJ/mol  
99+

13th Energy Level
5,580.00 kJ/mol  
99+
5,445.00 kJ/mol  
99+

14th Energy Level
558.30 kJ/mol  
99+
5,450.00 kJ/mol  
99+

15th Energy Level
55,800.00 kJ/mol  
99+
54,450.00 kJ/mol  
99+

16th Energy Level
558.30 kJ/mol  
99+
54,400.00 kJ/mol  
99+

17th Energy Level
558.30 kJ/mol  
99+
544.50 kJ/mol  
99+

18th Energy Level
5,580.00 kJ/mol  
99+
5,445.00 kJ/mol  
99+

19th Energy Level
558.30 kJ/mol  
99+
544.50 kJ/mol  
99+

20th Energy Level
558.00 kJ/mol  
99+
624.00 kJ/mol  
99+

21st Energy Level
558.30 kJ/mol  
99+
544.50 kJ/mol  
99+

22nd Energy Level
558.00 kJ/mol  
99+
624.00 kJ/mol  
37

23rd Energy Level
5,581.00 kJ/mol  
24
544.50 kJ/mol  
99+

24th Energy Level
558.30 kJ/mol  
99+
544.50 kJ/mol  
99+

25th Energy Level
558.00 kJ/mol  
99+
544.00 kJ/mol  
99+

26th Energy Level
558.30 kJ/mol  
99+
544.50 kJ/mol  
99+

27th Energy Level
558.30 kJ/mol  
99+
544.50 kJ/mol  
99+

28th Energy Level
558.30 kJ/mol  
99+
544.50 kJ/mol  
99+

29th Energy Level
558.30 kJ/mol  
99+
544.50 kJ/mol  
99+

30th Energy Level
558.00 kJ/mol  
99+
544.00 kJ/mol  
99+

Electrochemical Equivalent
1.43 g/amp-hr  
99+
1.87 g/amp-hr  
38

Electron Work Function
4.12 eV  
31
2.70 eV  
99+

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

Atomic

Atomic Number
49  
99+
62  
99+

Electron Configuration
[Kr] 4d10 5s2 5p1  
[Xe] 4f6 6s2  

Crystal Structure
Tetragonal (TETR)  
Rhombohedral (RHO)  

Crystal Lattice
TETR-Crystal-Structure-of-Indium.jpg#100  
RHO-Crystal-Structure-of-Samarium.jpg#100  

Atom
  
  

Number of Protons
49  
99+
62  
99+

Number of Neutrons
66  
99+
88  
40

Number of Electrons
49  
99+
62  
99+

Radius of an Atom
  
  

Atomic Radius
167.00 pm  
26
180.00 pm  
16

Covalent Radius
142.00 pm  
99+
198.00 pm  
13

Van der Waals Radius
193.00 pm  
38
229.00 pm  
25

Atomic Weight
114.82 amu  
99+
150.36 amu  
99+

Atomic Volume
15.70 cm3/mol  
99+
19.95 cm3/mol  
31

Adjacent Atomic Numbers
  
  

Previous Element
Cadmium
  

Next Element
Tin
  
Europium
  

Valence Electron Potential
54.00 (-eV)  
26
44.80 (-eV)  
38

Lattice Constant
325.23 pm  
99+
362.10 pm  
37

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

Lattice C/A Ratio
1.56  
99+
1.62  
15

Mechanical

Density
  
  

Density At Room Temperature
7.31 g/cm3  
99+
7.52 g/cm3  
99+

Density When Liquid (at m.p.)
7.02 g/cm3  
99+
7.16 g/cm3  
99+

Tensile Strength
2.50 MPa  
99+
50.00 MPa  
38

Viscosity
0.00  
25
0.00  
25

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.01 (Pa)  
11
0.94 (Pa)  
9

Vapor Pressure at 2000 K
0.00 (Pa)  
24
0.00 (Pa)  
29

Elasticity properties
  
  

Shear Modulus
18.00 GPa  
99+
19.50 GPa  
99+

Bulk Modulus
46.90 GPa  
27
37.80 GPa  
99+

Young's Modulus
11.00 GPa  
99+
49.70 GPa  
40

Poisson Ratio
0.44  
3
0.27  
19

Other Mechanical Properties
Ductile, Malleable  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
7.31  
99+
7.52  
99+

Magnetic Ordering
Diamagnetic  
Paramagnetic  

Permeability
0.00 H/m  
17
0.00 H/m  
9

Susceptibility
0.00  
34
0.00  
24

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
83.70 nΩ·m  
34
0.94 nΩ·m  
99+

Electrical Conductivity
0.12 106/cm Ω  
20
0.01 106/cm Ω  
99+

Electron Affinity
28.90 kJ/mol  
37
50.00 kJ/mol  
26

Thermal

Specific Heat
0.23 J/(kg K)  
27
0.20 J/(kg K)  
32

Molar Heat Capacity
26.74 J/mol·K  
32
29.54 J/mol·K  
9

Thermal Conductivity
81.80 W/m·K  
21
13.30 W/m·K  
99+

Critical Temperature
429.75 K  
99+
1,345.00 K  
99+

Thermal Expansion
32.10 µm/(m·K)  
9
12.70 µm/(m·K)  
39

Enthalpy
  
  

Enthalpy of Vaporization
226.40 kJ/mol  
99+
166.40 kJ/mol  
99+

Enthalpy of Fusion
3.28 kJ/mol  
99+
8.62 kJ/mol  
99+

Enthalpy of Atomization
242.70 kJ/mol  
99+
209.00 kJ/mol  
99+

Standard Molar Entropy
57.80 J/mol.K  
27
69.60 J/mol.K  
15

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