Question

many
rows and colums are there in
modern periodic table.​

Answer 1

Answer:

The modern period table has 18 vertical and 17 horizontal rows .

Answer 2

Answer:

In the Modern periodic table, there are 18 columns and 7 rows.Columns are called groups and rows are known as periods.

Hope it'll help you...

Mark me as the Brainliest.

Also thank and follow me.