Question

Write a short note on Mendeleev's periodic law.

Answer 1

Mendeleev's periodic law states that " The properties are a periodic function of their atomic mass." This means that the chemical and physical properties of the elements recur periodically when the elements are arranged in the order of their atomic weights. Mendeleev arranged the elements known at that time in order of increasing atomic masses and this arrangement was called the periodic table. Elements with similar properties were grouped into vertical rows called columns. The horizontal rows were known as periods.