Question

discuss briefly modern periodic table and position of elements

Answer 1

hey mate here is your answer........

The periodic table of elements, usually shortened to just theperiodic table is a tabular arrangement of the chemicalelements, ordered by their atomic number, electron configuration, and recurring chemical properties, whose structure shows periodic trends.

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Answer 2

modern periodic table have 7 period and 18 groups

The physical and chemical properties of elements are the perodic functions of their atomic number.
.if the elements are arranged in order of there increasing atomic number,after a regular interval of (2,8,8,18,18,32)elements with similar properties are repeted