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Scandium vs Meitnerium

Scandium
Meitnerium
Meitnerium vs Scandium


Periodic Table
Symbol
Sc  
Mt  
Group Number
3  
15
9  
9
Period Number
4  
7  
Block
d block  
d block  
Element Family
Transition Metal  
Probably Transition  
CAS Number
7440202  
99+
54038016  
10
Space Group Name
P63/mmc  
-  
Space Group Number
194.00  
7
166.00  
9
Facts
Interesting Facts
  • Scandium is known as one of the rare earth elements.
  • Scandium metal found in rare minerals called Wolframite .
  
Meitnerium is named after Lise Meitner, an Austrian physicist.  
Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals  
Bombarding Bi209 with Accelerated Nuclei of Fe58, Synthetically Produced  
History
  
  
Who Discovered
Lars Fredrik Nilson  
Gesellschaft für Schwerionenforschung  
Discovery
In 1879  
In 1982  
Abundance
  
  
Abundance In Universe
0.00 %  
16
0.00 %  
40
Abundance In Sun
0.00 %  
16
-  
Abundance In Meteorites
0.00 %  
18
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
23
-  
Abundance In Oceans
0.00 %  
32
-  
Abundance In Humans
0.00 %  
24
-  
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.
  
  • Currently known uses of Meitnerium metal are limited to research purpose only.
  
Industrial Uses
Electrical Industry, Electronic Industry  
-  
Medical Uses
-  
-  
Other Uses
Alloys  
-  
Biological Properties
  
  
Toxicity
Non Toxic  
-  
Present in Human Body
Yes  
No  
In Blood
0.01 Blood/mg dm-3  
22
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
39
0.00 p.p.m.  
99+
Physical
Melting Point
1,539.00 °C  
24
-  
Boiling Point
2,832.00 °C  
36
0.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
-  
Luster
Lustrous  
Unknown Luster  
Hardness
  
  
Mohs Hardness
5.50  
7
-  
Brinell Hardness
750.00 MPa  
13
400.00 MPa  
34
Vickers Hardness
1,200.00 MPa  
13
350.00 MPa  
99+
Speed of Sound
6,100.00 m/s  
5
3,200.00 m/s  
35
Optical Properties
  
  
Refractive Index
1.80  
21
1.30  
99+
Reflectivity
93.00 %  
3
68.00 %  
15
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Sc  
Mt  
Isotopes
  
  
Known Isotopes
13  
26
4  
33
Electronegativity
  
  
Pauling Electronegativity
1.36  
30
1.30  
33
Sanderson Electronegativity
1.02  
40
1.90  
13
Allred Rochow Electronegativity
1.20  
28
1.30  
25
Mulliken-Jaffe Electronegativity
1.36  
31
1.30  
33
Allen Electronegativity
1.19  
99+
1.30  
40
Electropositivity
  
  
Pauling Electropositivity
2.64  
25
2.00  
99+
Ionization Energies
  
  
1st Energy Level
633.10 kJ/mol  
99+
800.80 kJ/mol  
15
2nd Energy Level
1,235.00 kJ/mol  
99+
1,823.60 kJ/mol  
18
3rd Energy Level
2,388.60 kJ/mol  
99+
2,904.20 kJ/mol  
31
4th Energy Level
7,090.60 kJ/mol  
13
3,859.40 kJ/mol  
99+
5th Energy Level
8,843.00 kJ/mol  
7
4,920.80 kJ/mol  
99+
6th Energy Level
10,679.00 kJ/mol  
13
8,000.00 kJ/mol  
34
7th Energy level
13,310.00 kJ/mol  
8
8,000.00 kJ/mol  
28
8th Energy Level
15,250.00 kJ/mol  
11
8,000.00 kJ/mol  
28
9th Energy Level
17,370.00 kJ/mol  
14
6,700.00 kJ/mol  
36
10th Energy Level
21,726.00 kJ/mol  
13
5,800.00 kJ/mol  
99+
11th Energy Level
24,102.00 kJ/mol  
16
6,300.00 kJ/mol  
99+
12th Energy Level
66,320.00 kJ/mol  
7
0.00 kJ/mol  
99+
13th Energy Level
73,010.00 kJ/mol  
2
8,000.00 kJ/mol  
20
14th Energy Level
80,160.00 kJ/mol  
3
1,156.00 kJ/mol  
99+
15th Energy Level
89,490.00 kJ/mol  
6
80,000.00 kJ/mol  
17
16th Energy Level
97,400.00 kJ/mol  
5
58,700.00 kJ/mol  
39
17th Energy Level
105,600.00 kJ/mol  
6
1,110.00 kJ/mol  
20
18th Energy Level
117,000.00 kJ/mol  
7
8,000.00 kJ/mol  
23
19th Energy Level
124,270.00 kJ/mol  
8
1,110.00 kJ/mol  
17
20th Energy Level
633.00 kJ/mol  
99+
850.00 kJ/mol  
18
21st Energy Level
633.10 kJ/mol  
99+
800.00 kJ/mol  
99+
22nd Energy Level
633.00 kJ/mol  
35
380.00 kJ/mol  
99+
23rd Energy Level
633.10 kJ/mol  
99+
8,000.00 kJ/mol  
9
24th Energy Level
633.10 kJ/mol  
37
565.60 kJ/mol  
99+
25th Energy Level
633.00 kJ/mol  
39
800.00 kJ/mol  
13
26th Energy Level
633.10 kJ/mol  
38
800.00 kJ/mol  
13
27th Energy Level
633.10 kJ/mol  
40
800.00 kJ/mol  
12
28th Energy Level
633.10 kJ/mol  
99+
800.00 kJ/mol  
18
29th Energy Level
633.10 kJ/mol  
99+
800.00 kJ/mol  
18
30th Energy Level
633.00 kJ/mol  
99+
800.00 kJ/mol  
13
Electrochemical Equivalent
0.56 g/amp-hr  
99+
3.00 g/amp-hr  
21
Electron Work Function
3.50 eV  
99+
4.90 eV  
12
Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
21  
99+
109  
9
Electron Configuration
[Ar] 3d1 4s2  
[Rn] 5f14 6d7 7s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Scandium.jpg#100  
FCC-Crystal-Structure-of-Meitnerium.jpg#100  
Atom
  
  
Number of Protons
21  
99+
109  
9
Number of Neutrons
24  
99+
157  
8
Number of Electrons
21  
99+
109  
9
Radius of an Atom
  
  
Atomic Radius
162.00 pm  
28
122.00 pm  
99+
Covalent Radius
170.00 pm  
27
129.00 pm  
99+
Van der Waals Radius
211.00 pm  
32
260.00 pm  
9
Atomic Weight
44.96 amu  
99+
278.00 amu  
7
Atomic Volume
15.00 cm3/mol  
99+
20.20 cm3/mol  
30
Adjacent Atomic Numbers
  
  
Previous Element
Calcium
  
Hassium
  
Next Element
Titanium
  
Darmstadtium
  
Valence Electron Potential
58.00 (-eV)  
25
31.20 (-eV)  
99+
Lattice Constant
330.90 pm  
99+
0.00 pm  
99+
Lattice Angles
π/2, π/2, 2 π/3  
-  
Lattice C/A Ratio
1.59  
24
1.59  
27
Mechanical
Density
  
  
Density At Room Temperature
2.99 g/cm3  
99+
37.40 g/cm3  
2
Density When Liquid (at m.p.)
2.80 g/cm3  
99+
37.40 g/cm3  
2
Tensile Strength
150.00 MPa  
25
80.00 MPa  
29
Viscosity
0.00  
25
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
24
0.00 (Pa)  
37
Vapor Pressure at 2000 K
91.30 (Pa)  
3
0.00 (Pa)  
37
Elasticity properties
  
  
Shear Modulus
29.10 GPa  
28
35.00 GPa  
21
Bulk Modulus
56.60 GPa  
22
0.00 GPa  
99+
Young's Modulus
74.40 GPa  
28
13.50 GPa  
99+
Poisson Ratio
0.28  
18
0.25  
24
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
2.99  
99+
37.40  
4
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
8
0.00 H/m  
12
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
-  
Resistivity
562.00 nΩ·m  
10
0.35 nΩ·m  
99+
Electrical Conductivity
0.02 106/cm Ω  
99+
0.00 106/cm Ω  
99+
Electron Affinity
18.10 kJ/mol  
39
50.00 kJ/mol  
26
Thermal
Specific Heat
0.60 J/(kg K)  
8
0.10 J/(kg K)  
99+
Molar Heat Capacity
25.52 J/mol·K  
99+
27.00 J/mol·K  
29
Thermal Conductivity
15.80 W/m·K  
99+
0.00 W/m·K  
99+
Critical Temperature
1,814.00 K  
28
1,323.00 K  
99+
Thermal Expansion
10.20 µm/(m·K)  
99+
10.30 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
314.20 kJ/mol  
99+
110.00 kJ/mol  
99+
Enthalpy of Fusion
14.10 kJ/mol  
29
-  
Enthalpy of Atomization
343.00 kJ/mol  
38
350.20 kJ/mol  
37
Standard Molar Entropy
34.60 J/mol.K  
99+
63.80 J/mol.K  
22
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