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Atomic Structure of Calcium



Atomic

Atomic Number
20 86

Electron Configuration
[Ar] 4s2

Crystal Structure
Face Centered Cubic (FCC)

Crystal Lattice
FCC-Crystal-Structure-of-Calcium.jpg#100

Atom

Number of Protons
20 85

Number of Neutrons
20 65

Number of Electrons
20 85

Radius of an Atom

Atomic Radius
197.00 pm 8

Covalent Radius
176.00 pm 24

Van der Waals Radius
231.00 pm 23

Atomic Weight
40.08 amu 80

Atomic Volume
29.90 cm3/mol 10

Adjacent Atomic Numbers

Previous Element
9

Next Element
60

Valence Electron Potential
29.00 (-eV) 55

Lattice Constant
558.84 pm 10

Lattice Angles
π/2, π/2, π/2

Lattice C/A Ratio
1.55 46

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