First column: Alkali metals
Second column: Alkali Earth metals
Second to last: Halogens
Last: Noble Gases
alkaline earth metals
group or family
The columns on a periodic table are also known as groups.
Group
Hydrogen (H) is the first element in the periodic table.
the first type of periodic table is designed by Dmirit Mendeleev.
On the periodic table columns are called groups
group or family
The columns on a periodic table are also known as groups.
a group
a group
they are called groups or families
A row in the periodic table is called a period. Periods represent the number of energy levels occupied by electrons in an atom's configuration.
The elements that are listed in vertical columns all share specific aspects. These aspects include having the same number of valence electrons and having similar chemical properties.
Group
transition elements
Hydrogen (H) is the first element in the periodic table.
The name comes from the "periodic" (regularly arranged) traits of the material elements. The name given to the table's horizontal rows is periods.The Periodic Table is a tabular arrangement of the elements in increasing order oftheir atomic numbers, so that elements with similar properties are in the same column. There are 18 columns, called groups, and seven rows, which are called periods, in the modern periodic table.