Recent content by NuclearBoofluff

But that's just circular reasoning. Of course it's going to increase in energy (I thought it was potential) as it goes up. But what is the underlying mechanics behind these rules? Why is a full shell defined as a full shell; and what makes moving up an orbital/energy level so energy consuming?

Homework Statement Why is the EA of Neon endothermic even though it has a high Z eff? Basically, what makes a full valence shell so stable? The attempt at a solution I know it has to do with shielding, core e-, and valence e-. But I don't know how to word it.