Question

periodic table photo

Answer 1

In the modern periodic table there are 118 elements.

There are 7 horizontal rows .

Rows are also called periods.

Lanthanide and actinide belongs to group 6&7.

There are 18 vertical columns.

These columns are divided into 4 blocks,I;e

s, p,d and f

s block contains 1&2 group

p block contains 13-18 group

d block contain 3-12 group

and f block contains Lanthanide and actinide groups.

group 1 is also called alkali, group 2 is called alkaline earth metal,

group 3-12 called transition metals

group 16 is called chalcogens, groups 17 called halogens

Group 18 are Noble gas
in this group all the elements are obey octet rule .

hope it will help you ☺️

Answer 2

Hey mate..

Hope this helps you. ..