Question

6. Write short note on :-

Mendeleev's periodic law.​

Answer 1

Answer:

• Mendeleev’s periodic law states that; The physical and chemical properties of elements are a periodic function of their atomic weights. This means that the physical and chemical properties of elements depend on their atomic weight such that on arranging elements in increasing order of atomic weight, elements with similar properties are repeated after regular intervals of increasing atomic weight.
• In 1869, after the rejection of Newlands Octave Law, Mendeleev Periodic table came into the picture. In Mendeleev’s periodic table, elements were arranged on the basis of the fundamental property, atomic mass, and chemical properties. During Mendeleev’s work, only 63 elements were known.

Explanation:

Answer 2

Answer:

dl mandlev designend the period table of elements