Question

Draw orbit structure diagram of calcium oxide $\left(\mathrm{CaO}\right)$?

Answer 1

Orbital diagrams :

• Orbital diagrams are known as pictorial descriptions of the electrons in an atom.
• Three rules governing the formation of orbital diagrams are given:
• Auf Bau Principle- According to this principle each electron should occupy the lowest energy orbital.
• The Pauli Exclusion Principle - This says that only two electrons can stay in a single orbital.
• Hund's rule - This states that electrons enter different orbitals in the same sublevel before doubling in orbitals.

Orbit structure diagram of Calcium Oxide $\left(\mathrm{CaO}\right)$:

• Atomic numbers $\mathrm{Ca}=20,\mathrm{and}\mathrm{O}=8$
• Hence, the orbit structure diagram of calcium oxide can be shown as :