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An elements period is its row in the periodic table.
A horizontal row on the periodic table of elements is called a period.
A period is a row in the periodic table of elements.
A row on the periodic table is called a period.
The periodic table is an arrangement of the elementsfound in nature.
An elements period is its row in the periodic table.
An elements period is its row in the Periodic Table.
An elements period is its row in the Periodic Table.
A period is a row of elements on the periodic table.
Elements in the first row of the rare earth elements of the Periodic Table are called LANTHANIDES.
A horizontal row on the periodic table of elements is called a period.
A row.
A period is a row in the periodic table of elements.
A row on the periodic table is called a period.
litium, and elements in the 2nd period (row) are pretty common
a family is a column of elements a period is a row of elements
The periodic table is an arrangement of the elementsfound in nature.