Each column on the Periodic Table is called group.There are 18 groups in total.For example 17th group belongs to Halogens.
Each row on the periodic table is called a period, while each column is called a group.
The columns represent groups or families of elements. There are 18 of them.
Elements with the same number of valence electrons are in the same group (or vertical column).
the number of protons
each row in the Periodic Table is called a period.
Each vertical column in the periodic table is group.There are 18 groups in periodic table.Seventeenth group belongs to halogens.
A group, there ae 18 of them.
Each vertical column on the periodic table are called groups, they are also known as families because they have similar chemical properties to each other.
Each column is a group of chemical elements.
Each row on the periodic table is called a period, while each column is called a group.
The columns represent groups or families of elements. There are 18 of them.
Elements with the same number of valence electrons are in the same group (or vertical column).
They are the vertical columns on the Periodic Table. Each column (top to bottom) is considered to be a group or family.
A vertical column on the Periodic table on the periodic table is called group. There are 18 groups on the table. These groups are also referred to as families. Each element in a group has the same number of valence electrons and, therefore, similar chemical properties (there are some exceptions though).
the number of protons
Each (horizontal) row is called a '''period''', whereas each (vertical) column is called a group.
Each column going down the periodic table is an atomic group.