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Calcium
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Calcium
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Atomic Structure of Calcium and Lithium
Calcium
Lithium
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Summary
Periodic Table
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Atomic
Atomic Number
20
3
3
117
👆🏻
Electron Configuration
[Ar] 4s
2
[He] 2s
1
Crystal Structure
Face Centered Cubic (FCC)
Body Centered Cubic (BCC)
Crystal Lattice
Atom
Number of Protons
20
3
3
117
👆🏻
Number of Neutrons
20
4
4
285
👆🏻
Number of Electrons
20
3
3
117
👆🏻
Radius of an Atom
Atomic Radius
197.00 pm
152.00 pm
0
348
👆🏻
Covalent Radius
176.00 pm
128.00 pm
0
260
👆🏻
Van der Waals Radius
231.00 pm
182.00 pm
0
348
👆🏻
Atomic Weight
40.08 amu
6.94 amu
6.94
294
👆🏻
Atomic Volume
29.90 cm3/mol
13.10 cm3/mol
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
29.00 (-eV)
19.00 (-eV)
0
392.42
👆🏻
Lattice Constant
558.84 pm
351.00 pm
0
891.25
👆🏻
Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
Lattice C/A Ratio
1.55
1.62
0.423
1.9
👆🏻
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