Atomic Structure of Neptunium and Lithium
Atomic Properties
Atomic Number
93
25
3
99+
Electron Configuration
[Rn] 5f4 6d1 7s2
[He] 2s1
Crystal Structure
Orthorhombic (ORTH)
Body Centered Cubic (BCC)
Crystal Lattice
ORTH-Crystal-Structure-of-Neptunium.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
93
25
3
99+
Number of Neutrons
144
14
4
99+
Number of Electrons
93
25
3
99+
Radius of an Atom
Atomic Radius
155.00 pm
30
152.00 pm
31
Covalent Radius
190.00 pm
18
128.00 pm
99+
Van der Waals Radius
221.00 pm
22
182.00 pm
35
Atomic Weight
237.00 amu
22
6.94 amu
99+
Atomic Volume
11.62 cm3/mol
99+
13.10 cm3/mol
39
Adjacent Atomic Numbers
Valence Electron Potential
96.00 (-eV)
9
19.00 (-eV)
99+
Lattice Constant
666.30 pm
3
351.00 pm
99+
Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
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