Question

Short note'structureof modernperiodic table'

Answer 1

the arrangements of elements in the modern periodic table is based on the atomic no of elements.there are 118 elements in the modern periodic table

the modern periodic table has 7 horizontal rows and 18 vertical columns.

there are 4 blocks in the table ie 's' 'p' 'd' and 'f'

the metals are placed on the left side of the table while the nonmetals are placed on the right side. there is a zigzag line that separates the metals from nonmetals.

semiconductors like silicon lie along the border of this line