There are 18 groups in the Periodic Table of elements.
The elements in the A columns of the periodic table are called representative elements or main group elements. They are grouped into families based on similar chemical properties and valence electron configurations.
To find the information on certain elements!!Periodic Table lists elements in the increasing order of atomic number.Since elements are grouped in to columns (eg:inert gases), it is easier to predict the chemical behaviour of various elements.
There are 18 groups in the periodic table of elements.
Elements are arranged by atomic number in the periodic table. The atomic number represents the number of protons in the nucleus of an atom. This arrangement allows elements with similar properties to be grouped together in columns called groups or families.
Representative elements
the Periodic Table of elements
Scientists have grouped all elements into a periodic table based on their atomic number, electron configuration, and chemical properties. The periodic table is organized into periods (rows) and groups (columns) to display trends in properties such as atomic size, electronegativity, and reactivity. This arrangement allows for easier identification and understanding of the behavior of different elements.
They have simliar properties and same elements although later on more elements were added to the modern periodic table.=Both periodic tables have elements grouped by similar properties. Mendeleev's periodic table had elements arranged in order of increasing atomic mass in columns with similar properties. While many of the elements are in order of atomic mass on the modern periodic table, some are not, as the modern table has elements arranged in order of increasing atomic number.=
The vertical columns.
Horizontal rows in Periodic Table are called Periods
In the modern periodic table, elements are arranged according to their atomic number, which represents the number of protons in an atom's nucleus. This arrangement allows elements with similar chemical properties to be grouped together in columns called groups or families. The periodic table is organized into periods (rows) and groups (columns) based on this atomic number.
The periodic table of elements is the table that arranges different elements based on their common properties in rows and columns. It helps to organize and classify elements by their atomic number, electron configuration, and chemical properties.