Yes, and I'm not sure the R*RS standards even specify which special forms are fundamental vs implemented by macros. However, Smalltalk has some keywords too. In any case, it could be a concise cheat sheet.
Indeed but they're all on the postcard above (true, false, nil, super and self).
Smalltalk's closest thing to built-in special forms would be primitives but they have a generic "shape" and they're pretty much always used as implementation details for the "normal" messages which system users interact with.