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. Chlorine
B. Silicon
C. Oxygen
D. GermaniumAnswer
Answer:D
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. Chlorine B. Silicon C. Oxygen D. GermaniumAnswer