Acid Lewis Structures

[Michelle Nwufo 2G]

How do I determine whether the hydrogen will be attached to the central atom or not in acid Lewis bases? Is there a specific rule?

[Iona Pay]

I think the acid's we've had that don't bond normally are oxyacids and acids with multiple protons - I found this hard to explain, so here are a couple articles that do a better job than I can.

https://rafamunoa1.wordpress.com/2015/03/19/lewis-structure-of-oxoacids-and-anions-flowchart/

https://web.viu.ca/krogh/chem142/Lewis%20Structures%202009.pdf