The elements are arranged in horizontal rows and vertical columns to represent what is called the periods on the Periodic Table.
A horizontal row on the periodic table of elements is called a period.
Period 3 is the 3rd horizontal row. It is the 3rd row in periodic table.
The horizontal rows in the periodic table are called periods
Actually, a period is a horizontal row on the periodic table that signifies the number of electron shells an atom possesses. Elements within the same period have the same number of electron shells but different numbers of electrons in their outermost shell.
Horizontal rows are termed as periods. There are 7 periods in periodic table.
A horizontal row on the periodic table of elements is called a period.
The Horizontal row on the table is called a period
The period is the horizontal row.
period
period
A horizontal row in the periodic table is called a period. There are seven periods in the periodic table, labeled from 1 to 7. Each period represents the energy levels of the elements within that row.
The horizontal rows of the periodic table are called Periods and the vertical rows are called groups.
A period is a horizontal row.
The 7 horizontal rows in the periodic table are called periods.
period
Period
period