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Scandium vs Hassium


Hassium vs Scandium


Periodic Table

Symbol
Sc  
Hs  

Group Number
3  
15
8  
10

Period Number
4  
7  

Block
d block  
d block  

Element Family
Transition Metal  
Transition Metal  

CAS Number
7440202  
99+
54037579  
11

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 .
  
  • Hassium metals rate of decay is very high.
  • Hassium metals 1st sample was synthesized through a nuclear reaction.
  

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

History
  
  

Who Discovered
Lars Fredrik Nilson  
Gesellschaft für Schwerionenforschung  

Discovery
In 1879  
In 1984  

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 Hassium metal are limited to research purpose only.
  

Industrial Uses
Electrical Industry, Electronic Industry  
-  

Medical Uses
-  
-  

Other Uses
Alloys  
Research Purposes  

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  
Silver  

Luster
Lustrous  
-  

Hardness
  
  

Mohs Hardness
5.50  
7
4.50  
10

Brinell Hardness
750.00 MPa  
13
230.00 MPa  
99+

Vickers Hardness
1,200.00 MPa  
13
2,450.00 MPa  
5

Speed of Sound
6,100.00 m/s  
5
2,760.00 m/s  
99+

Optical Properties
  
  

Refractive Index
1.80  
21
1.30  
99+

Reflectivity
93.00 %  
3
69.00 %  
14

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Sc  
Hs  

Isotopes
  
  

Known Isotopes
13  
26
7  
31

Electronegativity
  
  

Pauling Electronegativity
1.36  
30
2.20  
5

Sanderson Electronegativity
1.02  
40
1.30  
25

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+
733.30 kJ/mol  
26

2nd Energy Level
1,235.00 kJ/mol  
99+
1,756.00 kJ/mol  
25

3rd Energy Level
2,388.60 kJ/mol  
99+
2,827.00 kJ/mol  
37

4th Energy Level
7,090.60 kJ/mol  
13
3,637.50 kJ/mol  
99+

5th Energy Level
8,843.00 kJ/mol  
7
4,940.00 kJ/mol  
99+

6th Energy Level
10,679.00 kJ/mol  
13
6,175.10 kJ/mol  
99+

7th Energy level
13,310.00 kJ/mol  
8
7,535.50 kJ/mol  
32

8th Energy Level
15,250.00 kJ/mol  
11
8,857.40 kJ/mol  
21

9th Energy Level
17,370.00 kJ/mol  
14
5,400.00 kJ/mol  
99+

10th Energy Level
21,726.00 kJ/mol  
13
6,100.00 kJ/mol  
99+

11th Energy Level
24,102.00 kJ/mol  
16
6,100.00 kJ/mol  
99+

12th Energy Level
66,320.00 kJ/mol  
7
3,500.00 kJ/mol  
99+

13th Energy Level
73,010.00 kJ/mol  
2
4,200.00 kJ/mol  
99+

14th Energy Level
80,160.00 kJ/mol  
3
1,124.00 kJ/mol  
99+

15th Energy Level
89,490.00 kJ/mol  
6
68,200.00 kJ/mol  
31

16th Energy Level
97,400.00 kJ/mol  
5
32,800.00 kJ/mol  
99+

17th Energy Level
105,600.00 kJ/mol  
6
1,089.00 kJ/mol  
22

18th Energy Level
117,000.00 kJ/mol  
7
3,300.00 kJ/mol  
99+

19th Energy Level
124,270.00 kJ/mol  
8
1,086.50 kJ/mol  
19

20th Energy Level
633.00 kJ/mol  
99+
880.00 kJ/mol  
14

21st Energy Level
633.10 kJ/mol  
99+
1,086.00 kJ/mol  
30

22nd Energy Level
633.00 kJ/mol  
35
350.00 kJ/mol  
99+

23rd Energy Level
633.10 kJ/mol  
99+
1,120.00 kJ/mol  
34

24th Energy Level
633.10 kJ/mol  
37
540.90 kJ/mol  
99+

25th Energy Level
633.00 kJ/mol  
39
610.00 kJ/mol  
99+

26th Energy Level
633.10 kJ/mol  
38
587.40 kJ/mol  
99+

27th Energy Level
633.10 kJ/mol  
40
880.00 kJ/mol  
5

28th Energy Level
633.10 kJ/mol  
99+
840.00 kJ/mol  
14

29th Energy Level
633.10 kJ/mol  
99+
867.80 kJ/mol  
11

30th Energy Level
633.00 kJ/mol  
99+
0.00 kJ/mol  
99+

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+
108  
10

Electron Configuration
[Ar] 3d1 4s2  
[Rn] 5f14 6d6 7s2  

Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  

Crystal Lattice
HCP-Crystal-Structure-of-Scandium.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
21  
99+
108  
10

Number of Neutrons
24  
99+
158  
7

Number of Electrons
21  
99+
108  
10

Radius of an Atom
  
  

Atomic Radius
162.00 pm  
28
126.00 pm  
99+

Covalent Radius
170.00 pm  
27
134.00 pm  
99+

Van der Waals Radius
211.00 pm  
32
0.00 pm  
99+

Atomic Weight
44.96 amu  
99+
269.00 amu  
9

Atomic Volume
15.00 cm3/mol  
99+
22.70 cm3/mol  
18

Adjacent Atomic Numbers
  
  

Previous Element
Calcium
  
Bohrium
  

Next Element
Titanium
  

Valence Electron Potential
58.00 (-eV)  
25
0.00 (-eV)  
99+

Lattice Constant
330.90 pm  
99+
-  

Lattice Angles
π/2, π/2, 2 π/3  
-  

Lattice C/A Ratio
1.59  
24
1.31  
99+

Mechanical

Density
  
  

Density At Room Temperature
2.99 g/cm3  
99+
40.70 g/cm3  
1

Density When Liquid (at m.p.)
2.80 g/cm3  
99+
41.00 g/cm3  
1

Tensile Strength
150.00 MPa  
25
80.00 MPa  
29

Viscosity
0.00  
25
0.00  
27

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)  
30

Elasticity properties
  
  

Shear Modulus
29.10 GPa  
28
40.00 GPa  
19

Bulk Modulus
56.60 GPa  
22
40.00 GPa  
38

Young's Modulus
74.40 GPa  
28
40.00 GPa  
99+

Poisson Ratio
0.28  
18
0.34  
10

Other Mechanical Properties
-  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
2.99  
99+
41.00  
2

Magnetic Ordering
Paramagnetic  
-  

Permeability
0.00 H/m  
8
0.00 H/m  
8

Susceptibility
0.00  
24
0.00  
25

Electrical Properties
  
  

Electrical Property
Conductor  
-  

Resistivity
562.00 nΩ·m  
10
41.00 nΩ·m  
99+

Electrical Conductivity
0.02 106/cm Ω  
99+
0.00 106/cm Ω  
99+

Electron Affinity
18.10 kJ/mol  
39
63.20 kJ/mol  
19

Thermal

Specific Heat
0.60 J/(kg K)  
8
0.13 J/(kg K)  
99+

Molar Heat Capacity
25.52 J/mol·K  
99+
25.92 J/mol·K  
99+

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+
21.20 µm/(m·K)  
23

Enthalpy
  
  

Enthalpy of Vaporization
314.20 kJ/mol  
99+
126.00 kJ/mol  
99+

Enthalpy of Fusion
14.10 kJ/mol  
29
-  

Enthalpy of Atomization
343.00 kJ/mol  
38
-  

Standard Molar Entropy
34.60 J/mol.K  
99+
57.20 J/mol.K  
29

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