Question

On what basis Mendeleev left gaps for undiscovered elements?​

Answer 1

Mendeleev left some gaps in his periodic table because he believed that in future more elements will be discovered. He predicted the existence of some elements and named them by prefixing a Sanskrit numeral, Eka (one).

Answer 2

Answer:

Mendeleev left some gaps in his periodic table because he believed that in future more elements will be discovered. He predicted the existence of some elements and named them by prefixing a Sanskrit numeral, Eka (one)