We've done hunds rule which days that electron will individually occupy orbital with the the subshell before pairing

✅ Correct!

You've accurately described Hund's Rule of Maximum Multiplicity. It states that within a subshell, electrons will individually occupy each orbital with parallel spins before any two electrons pair up in the same orbital. This happens because it minimizes electron-electron repulsion and results in a more stable, lower-energy configuration.

For example, when filling the three p orbitals (pₓ, pᵧ, p₂) in a subshell, the first three electrons will each go into a different p orbital with the same spin direction. Only after all three p orbitals have one electron will a fourth electron start to pair up in one of the p orbitals.