Question

Atomic theory periodic classification and properties of elements

Answer 1

Answer:

Moseley proposed this modern periodic table and according to which “the physical and chemical properties of elements are periodic function of their atomic number and not the horizontal rows called “periods”. ... In a group all the elements contain the same number of valence electrons.

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Answer 2

Answer:

Moseley proposed this modern periodic table and according to which “the physical and chemical properties of elements are periodic function of their atomic number and not the horizontal rows called “periods”. ... In a group all the elements contain the same number of valence electrons.

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