Final answer:
The vertical columns in the periodic table are called Groups or Families. Each group contains elements with similar chemical properties.
Step-by-step explanation:
The vertical columns in the periodic table are called Groups or Families. These groups are numbered from 1 to 18. Each group contains elements with similar chemical properties. For example, Group 1 consists of alkali metals, such as lithium and sodium, which are highly reactive with water.
Learn more about Vertical columns in the periodic table