Families.
There are 18 columns on the periodic table.They are called groups or families.
There are 18 A columns on the periodic table, also known as the groups. These columns represent elements with similar chemical properties and are numbered from 1 to 18.
There are 18 groups in the periodic table of elements.
The vertical columns are referred as noble elements. They are also called inert elements.
The columns of the periodic table are called groups.
Columns in the periodic table are called "groups" and there are 18 groups in the periodic table.
There are 18 columns on the periodic table.They are called groups or families.
There are 18 columns.
there are 18 columns
It is called a Group. There are 18 groups in the modern periodic table.
There are 18 A columns on the periodic table, also known as the groups. These columns represent elements with similar chemical properties and are numbered from 1 to 18.
18
18
As with any grid, the periodic table has rows running left to right, and columns running up and down. The rows are called PERIODS and the columns are called GROUPS.
There are 18 groups in the Periodic Table of elements.
the answer is groups.Added:There are 18 main groups and two special ones (with 14 lanthanides and 14 actinides respectively).Groups contain elements with the same 'outer' electron configuration (valence electrons).Note: Vertical rows are actually called: columns
Vertical columns are numbered from 1-18. There are 18 vertical columns.