#moseley

Mendeleev put tellurium before iodine despite higher atomic mass, so how did he justify it and what did Moseley change?

Doing the Genesis of Periodic Classification part of NCERT and my notes are a mess. I have Dobereiner's triads, Newlands' octaves, Lothar Meyer's curve, Mendeleev and Moseley all squeezed on one page and I keep mixing up