PERIODIC CLASSIFICATION OF ELEMENTS

• There are 115 elements known at present
• it is very difficult to study the properties of all these elements separately.
• So, elements in the same group have similar properties.
• As more elements were discovered, the study of elements and their properties and
• also their classification became very alive in the scientific world.
• Placing similar groups and species together is known as Classification.

This Lesson will cover the Following Topics

DOBEREINER’S TRIAD

NEWLANDS’ LAW OF OCTAVES

MENDELEEV’S PERIODIC TABLE

MAKING ORDER OUT OF CHAOS – THE MODERN PERIODIC TABLE

NCERT Solutions 

Previous Year Questions