Question

Write a short note on Mendeleev's periodic law​

Answer 1

Answer••••

The Mendeleev's periodic law states that " The properties are a periodic function of their atomic mass." by using the atomic mass as the concept periodic classification of elements can be arranged in a groups.

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Answer 2

Solution :

When the elements are arranged in the order of their increasing atomic masses, Mendeleev found that the elements with similar physcial and chemical properties repeat after a definite interval. On the basis of these finding Mendeleev statred the periodic law. <br> The physcial and chemical properties of elements are a periodic function of their atomic masses. <br> On the basis of this research, elements were arranged in the order of their increasing atomic numbers in a more systematic way.

1. The Russian Scientist Dmitri Mendeleev developed the periodic table of elements during the period 1869 to 1872 A.D.

2. Mendeleev organized the periodic table on the basis of the chemical and physical properties of the elements. He considered the fundamental property of elements, namely the atomic mass as standard and arranged 63 elements known at that time in an increasing order of their atomic masses.

3. He found that the elements with similar physical and chemical properties repeat after a definite interval.

4. On the basis of this finding, he stated that ‘properties of elements are a periodic function of their atomic masses’.

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