Question

what the
the group in Periodic table. How
many are
there in Periodic table.​

Answer 1

Answer:

18

The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups. The elements in each group have the same number of valence electrons.

Answer 2

The verticals coloumns in the periodic table are called groups . There are 18 groups in the Modern periodic table .