Mendeleev's periodic table is based on atomic masses of elements. It was the first successful attempt to classify all the known elements (63) that time. One of the most important advantage of this classification was that mendeleev predicted the physical and chemical properties of three elements : Eka-boron, Eka-silicon and Eka-aluminium. These elements were discovered as:

Mendeleev's periodic table is based on atomic masses of elements. It w

1.	Mendeleev's periodic table is based on atomic masses of elements. It was the first successful attempt to classify all the known elements (63) that time. One of the most important advantage of this classification was that mendeleev predicted the physical and chemical properties of three elements : Eka-boron, Eka-silicon and Eka-aluminium. These elements were discovered as:
Answer» GERMANIUM, SCANDIUM, GALLIUM scandium, germanium, gallium iron,SULPHUR and germnaium iron,sulphur and scandium Answer :B