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Scandium vs Tin

Scandium
Tin
Tin vs Scandium


Periodic Table
Symbol
Sc   
Sn   
Group Number
3   
15
14   
4
Period Number
4   
5   
Block
d block   
p block   
Element Family
Transition Metal   
Post-​Transition   
CAS Number
7440202   
99+
7440315   
99+
Space Group Name
P63/mmc   
I41/amd   
Space Group Number
194.00   
5
141.00   
7
Facts
Interesting Facts
  • Scandium is known as one of the rare earth elements.
  • Scandium metal found in rare minerals called Wolframite .
  
  • In the list of most abundant element Tin is ranked 49th.
  • Tin metal does not react with water as well as does not corrode in it.
  
Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals   
Found in Minerals, Mining   
History
  
  
Who Discovered
Lars Fredrik Nilson   
Unknown   
Discovery
In 1879   
Before 3500 BC   
Abundance
  
  
Abundance In Universe
3 * 10-6 %   
15
4 * 10-7 %   
20
Abundance In Sun
~0.000004 %   
16
~0.0000009 %   
19
Abundance In Meteorites
0.00 %   
18
0.00 %   
24
Abundance In Earth's Crust
0.00 %   
23
0.00 %   
34
Abundance In Oceans
0.00 %   
32
0.00 %   
26
Abundance In Humans
Not Available   
0.00 %   
13
Uses
Uses & Benefits
  • Uses of Scandium are limited to research purpose only. However, it has very low density and higher melting point.
  • Its compounds like scandium iodide is used in mercury vapor lamps to produce very bright white light.
  
  • Tin-niobium alloy is used for producing superconducting magnets.
  • Tin salt known as a tin II chloride, it is used as a mordant and as a reducing agent for dyeing calico and silk.
  
Industrial Uses
Electrical Industry, Electronic Industry   
Automobile Industry, Chemical Industry, Food Industry   
Medical Uses
NA   
Dentistry   
Other Uses
Alloys   
NA   
Biological Properties
  
  
Toxicity
Non Toxic   
Non Toxic   
Present in Human Body
Yes   
Yes   
In Blood
0.01 Blood/mg dm-3   
22
0.38 Blood/mg dm-3   
10
In Bone
0.00 p.p.m.   
34
1.40 p.p.m.   
16
Physical Properties
Melting Point
1,539.00 °C   
24
231.90 °C   
99+
Boiling Point
2,832.00 °C   
35
2,270.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery White   
Luster
Lustrous   
NA   
Hardness
  
  
Mohs Hardness
Not Available   
1.50   
18
Brinell Hardness
750.00 MPa   
12
50.00 MPa   
99+
Speed of Sound
Not Available   
2,730.00 m/s   
32
Optical Properties
  
  
Allotropes
No   
Yes   
α Allotropes
Not Available   
Grey Tin (alpha Tin, Tin Pest)   
β Allotropes
Not Available   
White Tin (Beta Tin)   
γ Allotropes
Not Available   
Rhombic Tin (gamma Tin)   
Chemical Properties
Chemical Formula
Sc   
Sn   
Isotopes
  
  
Known Isotopes
13   
26
35   
4
Electronegativity
  
  
Pauling Electronegativity
1.36   
29
1.96   
8
Sanderson Electronegativity
1.02   
21
1.49   
15
Allred Rochow Electronegativity
1.20   
27
1.72   
4
Mulliken-Jaffe Electronegativity
Not Available   
2.21   
3
Allen Electronegativity
1.19   
36
1.82   
11
Electropositivity
  
  
Pauling Electropositivity
2.64   
25
2.04   
99+
Ionization Energies
  
  
1st Energy Level
633.10 kJ/mol   
99+
708.60 kJ/mol   
33
2nd Energy Level
1,235.00 kJ/mol   
99+
1,411.80 kJ/mol   
99+
3rd Energy Level
2,388.60 kJ/mol   
99+
2,943.00 kJ/mol   
30
4th Energy Level
7,090.60 kJ/mol   
6
3,930.30 kJ/mol   
99+
5th Energy Level
8,843.00 kJ/mol   
6
7,456.00 kJ/mol   
13
6th Energy Level
10,679.00 kJ/mol   
7
Not Available   
7th Energy level
13,310.00 kJ/mol   
8
Not Available   
8th Energy Level
15,250.00 kJ/mol   
11
Not Available   
9th Energy Level
17,370.00 kJ/mol   
14
Not Available   
10th Energy Level
21,726.00 kJ/mol   
13
Not Available   
11th Energy Level
24,102.00 kJ/mol   
16
Not Available   
12th Energy Level
66,320.00 kJ/mol   
2
Not Available   
13th Energy Level
73,010.00 kJ/mol   
2
Not Available   
14th Energy Level
80,160.00 kJ/mol   
3
Not Available   
15th Energy Level
89,490.00 kJ/mol   
4
Not Available   
16th Energy Level
97,400.00 kJ/mol   
5
Not Available   
17th Energy Level
105,600.00 kJ/mol   
6
Not Available   
18th Energy Level
117,000.00 kJ/mol   
7
Not Available   
19th Energy Level
124,270.00 kJ/mol   
8
Not Available   
Electrochemical Equivalent
0.56 g/amp-hr   
99+
1.11 g/amp-hr   
99+
Electron Work Function
3.50 eV   
31
4.42 eV   
16
Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility   
Ionization, Solubility   
Atomic Properties
Atomic Number
21   
99+
50   
99+
Electron Configuration
[Ar] 3d1 4s2   
[Kr] 4d10 5s2 5p2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Tetragonal (TETR)   
Crystal Lattice
HCP-Crystal-Structure-of-Scandium.jpg#100   
TETR-Crystal-Structure-of-Tin.jpg#100   
Atom
  
  
Number of Protons
21   
99+
50   
99+
Number of Neutrons
24   
99+
69   
99+
Number of Electrons
21   
99+
50   
99+
Radius of an Atom
  
  
Atomic Radius
162.00 pm   
26
140.00 pm   
38
Covalent Radius
170.00 pm   
25
139.00 pm   
99+
Van der Waals Radius
211.00 pm   
25
217.00 pm   
23
Atomic Weight
44.96 amu   
99+
118.71 amu   
99+
Atomic Volume
15.00 cm3/mol   
34
16.30 cm3/mol   
32
Adjacent Atomic Numbers
  
  
Previous Element
Calcium
  
Indium
  
Next Element
Titanium
  
Cesium
  
Valence Electron Potential
58.00 (-eV)   
24
83.50 (-eV)   
14
Lattice Constant
330.90 pm   
99+
583.18 pm   
7
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.59   
7
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
2.99 g/cm3   
99+
7.37 g/cm3   
99+
Density When Liquid (at m.p.)
2.80 g/cm3   
99+
6.99 g/cm3   
34
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
22
0.00 (Pa)   
17
Vapor Pressure at 2000 K
91.30 (Pa)   
3
Not Available   
Elasticity properties
  
  
Shear Modulus
29.10 GPa   
24
18.00 GPa   
36
Bulk Modulus
56.60 GPa   
21
58.00 GPa   
20
Young's Modulus
74.40 GPa   
26
50.00 GPa   
36
Poisson Ratio
0.28   
18
0.36   
8
Other Mechanical Properties
NA   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
2.99   
99+
7.31   
99+
Magnetic Ordering
Paramagnetic   
Diamagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Superconductor   
Resistivity
562.00 nΩ·m   
10
115.00 nΩ·m   
28
Electrical Conductivity
0.02 106/cm Ω   
99+
0.09 106/cm Ω   
23
Electron Affinity
18.10 kJ/mol   
33
107.30 kJ/mol   
8
Thermal Properties
Specific Heat
0.60 J/(kg K)   
8
0.23 J/(kg K)   
28
Molar Heat Capacity
25.52 J/mol·K   
37
27.11 J/mol·K   
20
Thermal Conductivity
15.80 W/m·K   
99+
66.80 W/m·K   
25
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
10.20 µm/(m·K)   
39
22.00 µm/(m·K)   
20
Enthalpy
  
  
Enthalpy of Vaporization
314.20 kJ/mol   
28
290.40 kJ/mol   
32
Enthalpy of Fusion
14.10 kJ/mol   
25
7.03 kJ/mol   
99+
Enthalpy of Atomization
343.00 kJ/mol   
28
301.30 kJ/mol   
35
Standard Molar Entropy
34.60 J/mol.K   
99+
51.20 J/mol.K   
29
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