Option (b) is the answer.
In Mendeleev’s periodic table, gap was not left for one of the element. This element is: (a) Gallium (b) Beryllium (c) Germanium (d) Scandium
In Mendeleev’s periodic table, gap was not left for one of the element. This element is: (a) Gallium (b) Beryllium (c) Germanium (d) Scandium