Question

Octaves and Mendeleev's periodic table were based on ?​

Answer 1

$\sf{\underline{\red{Octaves\: Periodic\: Table }}}$$\sf{was \:based\: on\: the\: increasing}$$\sf{ atomic\: mass \:of \:the\: elements.}$

$\sf{\underline{\red{Mendeleev's\: Periodic \:Table }}}$$\sf{was\: based \:on\: the \:chemical}$$\sf{ properties\: of\: the \:elements.}$.

Answer 2

Explanation:

Octaves

Based on increasing order of weight

Mendeleev's

based on properties of elements in periodic function of their atomic weights