Interpretation:
The correct electron configuration of
Concept introduction:
The number of electrons in an element is equal to its
General rules for writing electron configuration
Electrons will reside in the available orbitals of lowest possible energy.
Each orbital can accommodate a maximum of two electrons.
Electrons will not pair in degenerate orbitals if an empty orbital is available.
Orbitals will fill in order of increasing energy
s-orbital can have 0–2 electrons.
p-orbital can have 0–6 electrons.
d-orbital can have 0–10 electrons.
f-orbital can have 0–14 electrons.
To write an electron configuration, use noble gas in brackets for core electrons.
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Chemistry
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