Home
 Compare Metals

Atomic Structure of Promethium and Americium

Promethium
Americium
Atomic Structure of Americium and Promethium


Atomic Properties
Atomic Number
61   
99+
95   
23
Electron Configuration
[Xe] 4f5 6s2   
[Rn] 5f7 7s2   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
DHCP-Crystal-Structure-of-Promethium.jpg#100   
DHCP-Crystal-Structure-of-Americium.jpg#100   
Atom
  
  
Number of Protons
61   
99+
95   
23
Number of Neutrons
84   
40
148   
12
Number of Electrons
61   
99+
95   
23
Radius of an Atom
  
  
Atomic Radius
183.00 pm   
10
173.00 pm   
21
Covalent Radius
199.00 pm   
12
180.00 pm   
21
Van der Waals Radius
236.00 pm   
16
244.00 pm   
10
Atomic Weight
145.00 amu   
99+
243.00 amu   
20
Atomic Volume
22.39 cm3/mol   
12
17.86 cm3/mol   
29
Adjacent Atomic Numbers
  
  
Previous Element
Neodymium
  
Plutonium
  
Next Element
Samarium
  
Curium
  
Valence Electron Potential
44.10 (-eV)   
39
44.00 (-eV)   
40
Lattice Constant
Not Available   
346.81 pm   
99+
Lattice Angles
Unknown   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical >>
<< Chemical

Compare Lanthanide Series

Lanthanide Metals

Lanthanide Metals

» More Lanthanide Metals

Compare Lanthanide Series

» More Compare Lanthanide Series
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!