Question

Description of modern periodic table

Answer 1

Answer:

Modern periodic table is very carefully prepared.

All the elements are placed in the rows and columns that results in formation of boxes.

There are total 118 elements discovered that are all.

The rows in the periodic table are called Periods.

The column in the periodic table are called Groups.

There are total 7 Periods and 18 Groups.

The elements in the period have same chemical properties.

There is a lot of thing to tell for it I stop here.