Atomic Structure of Magnesium and Thorium
Atomic Properties
Atomic Number
12
99+
90
28
Electron Configuration
[Ne] 3s2
[Rn] 6d2 7s2
Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
Crystal Lattice
HCP-Crystal-Structure-of-Magnesium.jpg#100
FCC-Crystal-Structure-of-Thorium.jpg#100
Atom
Number of Protons
12
99+
90
28
Number of Neutrons
12
99+
142
15
Number of Electrons
12
99+
90
28
Radius of an Atom
Atomic Radius
160.00 pm
27
179.80 pm
15
Covalent Radius
141.00 pm
99+
206.00 pm
7
Van der Waals Radius
173.00 pm
37
237.00 pm
15
Atomic Weight
24.31 amu
99+
232.04 amu
23
Atomic Volume
13.97 cm3/mol
37
19.90 cm3/mol
20
Adjacent Atomic Numbers
Valence Electron Potential
40.00 (-eV)
99+
59.30 (-eV)
23
Lattice Constant
320.94 pm
99+
508.42 pm
14
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
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