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