Non-mosaic Down syndrome is a genetic disorder. Most people with non-mosaic Down syndrome have three copies of chromosome 21 in all of their cells (chromosome 21 trisomy); some have an extra copy of chromosome 21 attached to a different chromosome in all of their cells (chromosome 21 translocation).
Making the world better, one answer at a time. Stanislao Cannizzaro, an Italian chemist who worked with Dmitri, inspired Dmitri Mendeleev to come up with his creative ideas. Atomic Weight also inspired Mendeleev.
Mendeleev also arranged the elements known at the time in order of relative atomic mass, but he did some other things that made his table much more successful. 1  Indestructibility of Matter. 2  Mendeleev's Opinion on Global warming. 3  Mendeleev eight periodic principles. 4  Mendeleev on the law of periodicity.