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Atomic Structure of Einsteinium and Iridium


Atomic Structure of Iridium and Einsteinium


Atomic

Atomic Number
99  
19
77  
39

Electron Configuration
[Rn] 5f11 7s2  
[Xe] 4f14 5d7 6s2  

Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  

Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100  
FCC-Crystal-Structure-of-Iridium.jpg#100  

Atom
  
  

Number of Protons
99  
19
74  
99+

Number of Neutrons
153  
10
110  
28

Number of Electrons
99  
19
74  
99+

Radius of an Atom
  
  

Atomic Radius
186.00 pm  
11
136.00 pm  
99+

Covalent Radius
186.00 pm  
21
141.00 pm  
99+

Van der Waals Radius
0.00 pm  
99+
202.00 pm  
34

Atomic Weight
252.00 amu  
16
192.22 amu  
34

Atomic Volume
17.04 cm3/mol  
99+
9.53 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Osmium
  

Next Element
Fermium
  
Platinum
  

Valence Electron Potential
0.00 (-eV)  
99+
140.00 (-eV)  
5

Lattice Constant
582.00 pm  
8
383.90 pm  
29

Lattice Angles
-  
π/2, π/2, π/2  

Lattice C/A Ratio
1.29  
99+
1.58  
35

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