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Atomic Structure of Americium and Thallium

Americium
Thallium
Atomic Structure of Thallium and Americium


Atomic Properties
Atomic Number
95   
23
81   
35
Electron Configuration
[Rn] 5f7 7s2   
[Xe] 4f14 5d10 6s2 6p1   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
DHCP-Crystal-Structure-of-Americium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
95   
23
81   
35
Number of Neutrons
148   
12
123   
20
Number of Electrons
95   
23
81   
35
Radius of an Atom
  
  
Atomic Radius
173.00 pm   
21
170.00 pm   
22
Covalent Radius
180.00 pm   
21
145.00 pm   
39
Van der Waals Radius
244.00 pm   
10
196.00 pm   
30
Atomic Weight
243.00 amu   
20
204.38 amu   
31
Atomic Volume
17.86 cm3/mol   
29
17.20 cm3/mol   
31
Adjacent Atomic Numbers
  
  
Previous Element
Plutonium
  
Mercury
  
Next Element
Curium
  
Lead
  
Valence Electron Potential
44.00 (-eV)   
40
9.60 (-eV)   
99+
Lattice Constant
346.81 pm   
99+
345.66 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.60   
6
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