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Atomic Structure of Beryllium and Lithium

Beryllium
Lithium
Atomic Structure of Lithium and Beryllium


Atomic
Atomic Number
4  
99+
3  
99+
Electron Configuration
[He] 2s2  
[He] 2s1  
Crystal Structure
Hexagonal Close Packed (HCP)  
Body Centered Cubic (BCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
4  
99+
3  
99+
Number of Neutrons
5  
99+
4  
99+
Number of Electrons
4  
99+
3  
99+
Radius of an Atom
  
  
Atomic Radius
112.00 pm  
99+
152.00 pm  
33
Covalent Radius
96.00 pm  
99+
128.00 pm  
99+
Van der Waals Radius
153.00 pm  
99+
182.00 pm  
99+
Atomic Weight
9.01 amu  
99+
6.94 amu  
99+
Atomic Volume
5.00 cm3/mol  
99+
13.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Lithium
  
No Previous Element  
Next Element
Sodium
  
Beryllium
  
Valence Electron Potential
82.00 (-eV)  
15
19.00 (-eV)  
99+
Lattice Constant
228.58 pm  
99+
351.00 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.57  
99+
1.62  
16
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