Question

a) State Modern Periodic Law. Explain briefly the achievement of the modern
periodic table
.
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Answer 1

Answer:

Your answer are as follows:

Explanation:

Mendeleevs Periodic Law: Properties of elements are the periodic function of their atomic masses. Achievements:i It could classify all the elements discovered at that time. ii It helped in the discovery of new elements. iii it helped in the correction of the atomic mass of some of the elements.