Home

Transition Metals + -

Actinide Metals + -

Lanthanide Metals + -

Post-Transition Metals + -

Alkaline Earth Metals + -

Compare Metals


Properties of Thulium and Scandium


Properties of Scandium & Thulium


Physical Properties

Melting Point
1,545.00 °C   
23
1,539.00 °C   
24

Boiling Point
1,730.00 °C   
99+
2,832.00 °C   
35

Hardness
  
  

Mohs Hardness
Not Available   
Not Available   

Brinell Hardness
471.00 MPa   
25
750.00 MPa   
12

Vickers Hardness
520.00 MPa   
21
Not Available   

Optical Properties
  
  

Refractive Index
Not Available   
Not Available   

Reflectivity
Not Available   
Not Available   

Speed of Sound
Not Available   
Not Available   

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Tm   
Sc   

Isotopes
  
  

Known Isotopes
32   
7
13   
26

Electronegativity
  
  

Pauling Electronegativity
1.25   
35
1.36   
29

Sanderson Electronegativity
Not Available   
1.02   
21

Allred Rochow Electronegativity
1.11   
29
1.20   
27

Mulliken-Jaffe Electronegativity
Not Available   
Not Available   

Allen Electronegativity
Not Available   
1.19   
36

Electropositivity
  
  

Pauling Electropositivity
2.75   
19
2.64   
25

Ionization Energies
  
  

1st Energy Level
596.70 kJ/mol   
99+
633.10 kJ/mol   
99+

2nd Energy Level
1,160.00 kJ/mol   
99+
1,235.00 kJ/mol   
99+

3rd Energy Level
2,285.00 kJ/mol   
99+
2,388.60 kJ/mol   
99+

Electrochemical Equivalent
2.10 g/amp-hr   
26
0.56 g/amp-hr   
99+

Electron Work Function
Not Available   
3.50 eV   
31

Other Chemical Properties
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility
  
?
Corrosion is a process which converts refined metals to their more stable forms, for example, its oxide and hydroxide. This process of metals getting corroded is a gradual destruction of metals by chemical reactions.Corrosion, 
?
Flammable metals have ability to burn or ignite, causing fire or combustion.Flammable, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility
  

Mechanical Properties

Density
  
  

Density At Room Temperature
9.32 g/cm3   
40
2.99 g/cm3   
99+

Density When Liquid (at m.p.)
8.56 g/cm3   
24
2.80 g/cm3   
99+

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.06 (Pa)   
10
0.00 (Pa)   
22

Vapor Pressure at 2000 K
Not Available   
91.30 (Pa)   
3

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Elasticity properties
  
  

Shear Modulus
30.50 GPa   
22
29.10 GPa   
24

Bulk Modulus
44.50 GPa   
26
56.60 GPa   
21

Young's Modulus
74.00 GPa   
27
74.40 GPa   
26

Poisson Ratio
0.21   
31
0.28   
18

Other Mechanical Properties
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile, 
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable
  
NA   

Periodic Table

Symbol
Tm   
Sc   

Group Number
Not Available   
3   
15

Period Number
6   
4   

Block
?
The f-block is in the center-left of a 32-column periodic table but in the footnoted appendage of 18-column tables. These elements are not generally considered as part of any group. They are often called inner transition metals.f block
  
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block
  

Element Family
?
Total 15 metals are included in Lanthanide series from Lanthanum to Lutetium. Lanthanide series is located under f and d block of the periodic table.Lanthanide
  
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal
  

Atomic Properties

Atomic Number
69   
99+
21   
99+

Atomic Weight
168.93 amu   
99+
44.96 amu   
99+

Atomic Volume
18.10 cm3/mol   
28
15.00 cm3/mol   
34

Electron Configuration
[Xe] 4f13 6s2   
[Ar] 3d1 4s2   

Valence Electron Potential
49.70 (-eV)   
28
58.00 (-eV)   
24

Atom
  
  

Number of Protons
69   
99+
21   
99+

Number of Neutrons
100   
32
24   
99+

Number of Electrons
69   
99+
21   
99+

Crystal Structure
?
The hexagonal crystal system consists of the 7 point groups such that all their space groups have the hexagonal lattice as underlying lattice. The hexagonal crystal family consists of the 12 point groups such that at least one of their space groups has theHexagonal Close Packed (HCP)
  
?
The hexagonal crystal system consists of the 7 point groups such that all their space groups have the hexagonal lattice as underlying lattice. The hexagonal crystal family consists of the 12 point groups such that at least one of their space groups has theHexagonal Close Packed (HCP)
  

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

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
162.00 pm   
26

Covalent Radius
160.00 pm   
30
170.00 pm   
25

Van der Waals Radius
Not Available   
211.00 pm   
25

Lattice Constant
353.75 pm   
40
330.90 pm   
99+

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

Lattice C/A Ratio
1.57   
17
1.59   
7

Adjacent Atomic Numbers
  
  

Next Element
Ytterbium
  
Titanium
  

Previous Element
Erbium
  
Calcium
  

Magnetic Properties

Electrical Properties
  
  

Resistivity
676.00 nΩ·m   
5
562.00 nΩ·m   
10

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

Electron Affinity
50.00 kJ/mol   
21
18.10 kJ/mol   
33

Electrical Property
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor
  
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor
  

Magnetic Characteristics
  
  

Specific Gravity
9.32   
31
2.99   
99+

Magnetic Ordering
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic
  
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic
  

Permeability
Not Available   
Not Available   

Susceptibility
Not Available   
Not Available   

Thermal Properties

Specific Heat
0.16 J/(kg K)   
35
0.60 J/(kg K)   
8

Thermal Conductivity
16.90 W/m·K   
99+
15.80 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Molar Heat Capacity
27.03 J/mol·K   
22
25.52 J/mol·K   
37

Thermal Expansion
13.30 µm/(m·K)   
29
10.20 µm/(m·K)   
39

Standard Molar Entropy
74.00 J/mol.K   
9
34.60 J/mol.K   
99+

Enthalpy
  
  

Enthalpy of Vaporization
191.00 kJ/mol   
99+
314.20 kJ/mol   
28

Enthalpy of Fusion
16.80 kJ/mol   
17
14.10 kJ/mol   
25

Enthalpy of Atomization
247.00 kJ/mol   
99+
343.00 kJ/mol   
28

All >>
<< Thermal

Compare Lanthanide Series

Lanthanide Metals

Lanthanide Metals

» More Lanthanide Metals

Compare Lanthanide Series

» More Compare Lanthanide Series