A row of elements is known as a Period, while a column is known as a group, or family.
wrong it is not isotopes the correct answer would be group. :)
The horizontal line (Row Across) is called periods, and the verticle columns (Row down) anre called groups.
It's Periods number
Period.
Period
period
Periods.
A Periodic table The Periodic Table of the Elements.
A row on the periodic table is called a period.
Periodic table!
There are 118 elements. They are on the Periodic Table.
The columns on a periodic table are also known as groups.
A Periodic table The Periodic Table of the Elements.
A group.
The element abbreviated with As on the periodic table is Arsenic
After lanthanum, thus the name.
A row on the periodic table is called a period.
Carbon's name is C on periodic table. It belongs to group no. 14.
The Periodic Table.
Periodic table!
There are 118 elements. They are on the Periodic Table.
Another name for a group on the Periodic Table is a column.
Hydrogen (H) is the first element in the periodic table.
The columns on a periodic table are also known as groups.