Science, asked by khushi1030, 1 year ago

describe the main features of mendeleevs laws of octaves.

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Answered by qOooooooooOq
1
Mendeleev classified periodic table into horizontal rows and vertical coloumns. The horizontal rows are called as periods and vertical columns are called groups.
The elements with similar properties comes into same group.
 Mendeleev also left gaps in his periodic table for undiscovered elements like aluminum, silicon and Boron in his periodic table and named them Eka-Aluminium, Eka-silicon and Eka-Boron.
  Mendeleev not only predicted the existence of Eka-Aluminium, Eka-silicon and Eka-Boron but also described the general physical properties of these elements.
These elements discovered later and named as Gallium, Germanium and Scandium.
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