Atomic Structure of Scandium and Rhenium
Atomic Properties
Atomic Number
21
99+
75
99+
Electron Configuration
[Ar] 3d1 4s2
[Xe] 4f14 5d5 6s2
Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
HCP-Crystal-Structure-of-Scandium.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
21
99+
75
40
Number of Neutrons
24
99+
111
26
Number of Electrons
21
99+
75
40
Radius of an Atom
Atomic Radius
162.00 pm
26
137.00 pm
40
Covalent Radius
170.00 pm
25
151.00 pm
34
Van der Waals Radius
211.00 pm
25
200.00 pm
28
Atomic Weight
44.96 amu
99+
186.21 amu
36
Atomic Volume
15.00 cm3/mol
34
8.85 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
58.00 (-eV)
24
180.00 (-eV)
3
Lattice Constant
330.90 pm
99+
276.10 pm
99+
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
Lattice C/A Ratio
1.59
7
1.62
3
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