Why did Mendeleev left some gaps in his periodic table? 

Asked by pdcavita | 29th Nov, 2017, 10:23: PM

Expert Answer:

Mendeleev left some gaps in his periodic table

 To make sure that elements with similar properties lie in the same group, Mendeleev left some gaps in the periodic table. These gaps were left for subsequent inclusion of the elements not known at that time.  The elements were discovered later.

Answered by Varsha | 30th Nov, 2017, 10:30: AM