Question

name two elements whose position was not on the basis of atomic masses in mendellev 's periodic table ? ​

Answer 1

Explanation:

It was later identified as gallium. Gallium, germanium, and scandium were all unknown in 1871, but Mendeleev left spaces for each and predicted their atomic masses and other chemical properties. Within 15 years, the “missing” elements were discovered, conforming to the basic characteristics Mendeleev had recorded.

Answer 2

HERE IS UR ANSWER DEAR,

gold and platinum