In Mendeleev’s periodic table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?
A.Germanium
B.Chlorine
C.Oxygen
D.Silicon
Answer:A
In Mendeleev’s periodic table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?
A.Germanium B.Chlorine C.Oxygen D.Silicon