Question

give advantages of long form of periodic table​

Answer 1

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It gives a suitable link between the position of element and its electronic configuration. On the basis of atomic numbers it easier to remember all the elements. The elements in the same group have similar properties due to their outer-most (valence shell) configuration. it also provide all the information you need to balance chemical reactions at a glance. The table tells each element's atomic number and usually its atomic weight. The usual charge on an element is indicated by an element's group.

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