It is called a group
Vertical columns are called groups. Horizontal rows are called periods.
In the periodic table, the horizontal rows are called periods and the vertical columns are groups. Iodine is in period 5.
Generally the most reactive elements in the periodic table are found in the first two (left-most) columns: the alkali metal and alkali earths.
this is called an element family because the elements in the same columns in periodic tables each have similar traits and characteristics. For example, they all have the same amount of valence electrons (the number of electrons in the outer ring of an atom)
No, it is not on the periodic table.
Columns in the periodic table are called "groups" and there are 18 groups in the periodic table.
The vertical columns of the periodic table are called groups or families.
The columns on the periodic table are called Groups.
groups are the vertical columns on the periodic table
The vertical columns are called "Groups''The horizontal columns are called "Periods"The vertical columns of the periodic table are known as groups.
On the periodic table columns are called groups
The vertical columns in a periodic table are called Groups.
The columns are known as groups.
The vertical columns are called groups in a periodic table.
There are 18 columns on the periodic table.They are called groups or families.