header row
The elements that are placed outside of the periodic table are called transactinides. These elements are usually placed in a separate row below the main table and are synthetic elements that do not occur naturally on Earth.
Each horizontal row in a table or spreadsheet is called a "row" or sometimes a "record."
A horizontal row on the periodic table of elements is called a period.
Helium is in Group 18 (also known as the noble gases) and in the top row of the periodic table.
header row
The elements that are placed outside of the periodic table are called transactinides. These elements are usually placed in a separate row below the main table and are synthetic elements that do not occur naturally on Earth.
A row in the periodic table is called a period. Columns are groups.
A row in the Periodic Table is called a period. Columns are groups.
A row in the Periodic Table is called a period. Columns are groups.
In the top row or the first row.
Each horizontal row in the periodic table is called a period.
a horizontal row is called a period.a vertical row is called a group
The horizontal row on the periodic table is called the "period". The vertical column is called the "group".
groupsi
Each horizontal row in a table or spreadsheet is called a "row" or sometimes a "record."
A horizontal row on the periodic table of elements is called a period.