Question

What is the basis of Modern Periodic Table ? i. Atomic weight. ii. Valency. iii. Atomic number. iv. Chemical reactivity.​

Answer 1

Answer:

Answer iv

Explanation:

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Answer 2

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The periodic table is an arrangement of the chemical elements and are organized onthe basis of their atomic numbers, electron configurations and recurring chemical properties. Elements are presented in order of increasing atomic number.

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