Period
each row in the Periodic Table is called a period.
Period.
period
The horizontal rows on the periodic table are called periods.
Each column on the periodic table is called group.There are 18 groups in total.For example 17th group belongs to Halogens.
each row in the Periodic Table is called a period.
The rows of elements in the periodic table are called periods. There are a total of 7 periods in the periodic table, each representing a different energy level or shell in which the elements' electrons are arranged.
The Horizontal Rows are named 'PERIODS'. The Vertical Columns are named 'GROUPS'.
Each (horizontal) row is called a '''period''', whereas each (vertical) column is called a group.
its called a period.
http://www.corrosionsource.com/handbook/periodic/periodic_table.gif
A group, there ae 18 of them.