Atomic Structure of Yttrium and Neptunium
Atomic Properties
Atomic Number
39
99+
93
25
Electron Configuration
[Kr] 4d1 5s2
[Rn] 5f4 6d1 7s2
Crystal Structure
Hexagonal Close Packed (HCP)
Orthorhombic (ORTH)
Crystal Lattice
HCP-Crystal-Structure-of-Yttrium.jpg#100
ORTH-Crystal-Structure-of-Neptunium.jpg#100
Atom
Number of Protons
39
99+
93
25
Number of Neutrons
50
99+
144
14
Number of Electrons
39
99+
93
25
Radius of an Atom
Atomic Radius
180.00 pm
14
155.00 pm
30
Covalent Radius
190.00 pm
18
190.00 pm
18
Van der Waals Radius
200.00 pm
28
221.00 pm
22
Atomic Weight
88.91 amu
99+
237.00 amu
22
Atomic Volume
19.80 cm3/mol
21
11.62 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
48.00 (-eV)
30
96.00 (-eV)
9
Lattice Constant
364.74 pm
31
666.30 pm
3
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Lattice C/A Ratio
1.57
16
Not Available
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