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Potassium
Potassium

Erbium
Erbium



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Potassium
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Erbium

Atomic Structure of Potassium and Erbium

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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

 
19
[Ar] 4s1
Body Centered Cubic (BCC)
BCC-Crystal-Structure-.jpg#100
19
20
19
227.00 pm
203.00 pm
275.00 pm
39.10 amu
45.46 cm3/mol
17
12
10.40 (-eV)
532.80 pm
π/2, π/2, π/2
1.69
 
68
[Xe] 4f12 6s2
Hexagonal Close Packed (HCP)
HCP-Crystal-Structure-of-Erbium.jpg#100
68
99
68
176.00 pm
189.00 pm
0.00 pm
167.26 amu
18.40 cm3/mol
79
75
49.00 (-eV)
355.88 pm
π/2, π/2, 2 π/3
1.57