Teaching module
Manipulate the chemical proof
The goal is not to simulate all atomic chemistry. The goal is to make the central PT brick visible: a channel has orientations, spin doubles each orientation, then channel occupation turns geometry into period, closure, capture boundary, or vacancy.
1 electrons over 2
Capacity
2
Vacancy
1
PT reading
active boundary
Channel polygon
Green points are occupied seats. White points are remaining vacancies. When the channel is almost closed, the boundary effect becomes chemically important: this is the intuition behind the EA and IE readings.