Question

Vertical columns in the periodic table indicate what information?

A.
periods

B.
liquids

C.
synthetic elements

D.
groups and families

Answer 1

The periodic table also has a special name for its vertical columns. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital. Those outer electrons are also called valence electrons. They are the electrons involved in chemical bonds with other elements.
so basically
\[rows~=period\\vertical~columns=group~of~families\]

Answer 2

thnx