Question

write a note on structure of the modern periodic table​

Answer 1

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In the modern periodic table, the elements are arranged in the order of their inreasing atomic number. In the modern periodic table there are seven horizontal rows called periods and eighteen vertical columns (1 to 18) called groups. The arrangement of the periods and groups results into formation of boxes.

Answer 2

Answer:

In the modern periodic table, the element are arranged in the order of their increasing atomic number. In the modern periodic table there are 7 horizontal rows called periods and eighteen vertical columns ( 1 to 18 ) called groups. the arrangement of the periodic and groups result into formation of boxes