Group are based on similar properties. The elements having same chemical properties are grouped together.
There are 18 groups in the Periodic Table of elements.
Properties of elements are periodic function of atomic number. Elements with same chemical properties are grouped together.
Some important questions to ask about the periodic table include: What is the organization of elements based on? How are elements grouped together? What are the properties of elements in the same group or period? How does the periodic table help predict the behavior of elements?
Atomic Number
the Periodic Table of elements
Dmitri Mendeleev is known as the father of the periodic table of elements. He arranged the elements in order of increasing atomic weight and grouped them based on similar properties. Mendeleev's periodic table laid the foundation for the modern periodic table we use today.
they are grouped by the number of valence electrons.
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.
he drew up a table that grouped elements according to their atomic weights, his table became the basis for the periodic table of elements used today.
Metals
MOSLEY
Actually, Dmitri Mendeleev formulated the periodic law and published his periodic table of elements in 1869. This table arranged elements by increasing atomic mass and grouped them based on similar properties, predicting the properties of missing elements. It was a significant contribution to the field of chemistry.