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Samarium
Samarium

Promethium
Promethium



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Samarium
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Promethium

Atomic Structure of Samarium 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

 
62
[Xe] 4f6 6s2
Rhombohedral (RHO)
RHO-Crystal-Structure-of-Samarium.jpg#100
62
88
62
180.00 pm
198.00 pm
229.00 pm
150.36 amu
19.95 cm3/mol
74
73
44.80 (-eV)
362.10 pm
π/2, π/2, 2 π/3
1.62
 
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