Chemistry - PERIODIC TABLE Question with Solution | TestHub

Mendeleev predicted physical & chemical properties of many elements that were not yet discovered. He used Sanskrit prefixes eka, dvi or tri depending on whether the predicted element was 1, 2 or 3 places down from the known element of the same group respectively.

Calculate the sum of atomic numbers of elements in the modern periodic table that correspond to eka manganese & dvi - manganese.