chem: add formal names of orbital rules

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eggy 2020-10-31 15:55:04 -04:00
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@ -397,13 +397,13 @@ Orbitals of the same type but in higher energy levels are simply larger, so any
*f*-orbitals have more complex shapes. There are 7 in each energy level starting from $n=4$. *f*-orbitals have more complex shapes. There are 7 in each energy level starting from $n=4$.
Orbitals are filled up in order of increasing energy, which is shown in the image below. The **Aufbau principle** states that orbitals are filled up in order of increasing energy, which is shown in the image below.
<img src="/resources/images/orbital-energy.png" width=700>(Source: Kognity)</img> <img src="/resources/images/orbital-energy.png" width=700>(Source: Kognity)</img>
As such, the orbitals are filled in the order shown in the arrow below: ### Orbital box diagrams
<img src="/resources/images/orbital-order.png" width=700>(Source: Kognity)</img> According to **Hund's rule**, atoms fill all orbitals in the same sublevel before pairing up, similar to *Monopoly* house-building rules.
## 3 - Periodicity ## 3 - Periodicity