header row
The top row of a table is called the header row. It typically contains column labels or headings that describe the data in each column below it.
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 row on the periodic table is called a period, while each column is called a group.
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.
The top row of a table is called the header row. It typically contains column labels or headings that describe the data in each column below it.
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.
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 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 row on the periodic table is called a period, while each column is called a group.
A horizontal row on the periodic table of elements is called a period.
A row on the periodic table is a horizontal arrangement of elements that share similar properties. These elements have the same number of electron shells. Each row represents one energy level or electron shell in an atom.