Question

state the salient features of the modern periodic table . state how separation of elements and periodicity of elements forms an important part of the modern periodic table

Answer 1

Answer:

In the modern periodic table, the elements are arranged in the order of their increasing 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 in formation of boxes.