What nationality is Dmitri Mendeleev described as on Wikipedia? He is described as Russian.
Mendeleev was born in 1834 near Tobolsk, in Siberia, then part of the Russian Empire. He worked mainly in Saint Petersburg and became one of the best-known Russian scientists of the nineteenth century. His nationality is therefore distinct from the place-based labels in the options: Swedish, French and German.
Mendeleev’s fame rests on formulating the periodic law and creating a periodic table that organized elements by recurring chemical properties. He also predicted the existence and properties of elements later identified as gallium, scandium and germanium.
A common mix-up is confusing nationality with the language or international setting of his work. Mendeleev published and lectured in a Europe-wide scientific community, received honors from British institutions, and was considered for the Nobel Prize, but Wikipedia identifies him as Russian. The synthetic element mendelevium was later named in his honor.