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Hafnium
Hafnium

Promethium
Promethium



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Hafnium
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Promethium

Atomic Structure of Hafnium and Promethium

Atomic

Atomic Number

Electron Configuration

Crystal Structure

Crystal Lattice

Number of Protons

Number of Neutrons

Number of Electrons

Atomic Radius

Covalent Radius

Van der Waals Radius

Atomic Weight

Atomic Volume

Previous Element

Next Element

Valence Electron Potential

Lattice Constant

Lattice Angles

Lattice C/A Ratio

 
72
[Xe] 4f14 5d2 6s2
Hexagonal Close Packed (HCP)
BCC-Crystal-Structure-.jpg#100
72
106
72
159.00 pm
175.00 pm
200.00 pm
178.49 amu
13.60 cm3/mol
80
57
81.00 (-eV)
319.64 pm
π/2, π/2, 2 π/3
1.58
 
61
[Xe] 4f5 6s2
Double Hexagonal Close Packed (DHCP)
DHCP-Crystal-Structure-of-Promethium.jpg#100
61
84
61
183.00 pm
199.00 pm
236.00 pm
145.00 amu
22.39 cm3/mol
13
50
44.10 (-eV)
-
-
1.63