Calcium electron configuration

Ca (Calcium) is an element with position number 20 in the periodic table. Located in the IV period. Melting point: 839 ℃. Density: 1.54 g/cm3.
Electronic configuration of the Calcium atom:
1s2 2s2 2p6 3s2 3p6 4s2

Reduced electronic configuration Ca:
[Ar] 4s2

Below is the electronic diagram of the Calcium atom
Orbital diagram of the Calcium atom
Distribution of electrons over energy levels in the Ca atom
1-st level (K): 2
2-st level (L): 8
3-st level (M): 8
4-st level (N): 2
Distribution of electrons in the Calcium

Valence electrons of Calcium

The number of valence electrons in a Calcium atom - 2.
Below are their quantum numbers (N - energy, L - angular momentum, M - magnetic moment, S - spin )
Oxidation states of Calcium: +2
Other elements
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