Home

Transition Metals + -

Actinide Metals + -

Lanthanide Metals + -

Post-Transition Metals + -

Alkaline Earth Metals + -

Compare Metals


Atomic Structure of Thulium and Radium


Atomic Structure of Radium and Thulium


Atomic Properties

Atomic Number
69   
99+
88   
30

Electron Configuration
[Xe] 4f13 6s2   
[Rn] 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   

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

Atom
  
  

Number of Protons
69   
99+
88   
30

Number of Neutrons
100   
32
138   
16

Number of Electrons
69   
99+
88   
30

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
Not Available   

Covalent Radius
160.00 pm   
30
221.00 pm   
3

Van der Waals Radius
Not Available   
283.00 pm   
4

Atomic Weight
168.93 amu   
99+
226.00 amu   
26

Atomic Volume
18.10 cm3/mol   
28
45.20 cm3/mol   
4

Adjacent Atomic Numbers
  
  

Previous Element
Erbium
  
Francium
  

Next Element
Ytterbium
  
Actinium
  

Valence Electron Potential
49.70 (-eV)   
28
20.10 (-eV)   
99+

Lattice Constant
353.75 pm   
40
514.80 pm   
13

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

Lattice C/A Ratio
1.57   
17
Not Available   

Mechanical >>
<< Chemical

Compare Lanthanide Series

Lanthanide Metals

Lanthanide Metals

» More Lanthanide Metals

Compare Lanthanide Series

» More Compare Lanthanide Series