Karnataka SSLC Karnataka Secondary Education Examination Board
Share
Notifications

View all notifications

Periodic Classification of Elements Introduction

Login
Create free account


      Forgot password?

notes

Initially Scientists had classified elements into metal and non-metals. However some elements possessed properties which could neither be metals or non-metals called metalloids. The classification was found to be insufficient for scientific study. Later on, a number of chemists attempted to male a rational and systematic classification of the physical and chemical properties of the elements and tabulate them in the form of a table.

Matter around us is present in the form of elements, compounds and mixtures.

There are total 118 elements known to us all possessing different properties.

To make the study of the elements easy they have been divided into few groups of three elements known as triads. Having similar chemical properties.

Periodic Table:- The table giving the arrangement of the known elements according to their properties so that similar elements fall within the same vertical column and the dissimilar elements are separated.

Video Tutorials

We have provided more than 1 series of video tutorials for some topics to help you get a better understanding of the topic.

Series 1


Series 2


Shaalaa.com | Periodic Classification of Elements part 1 (Introduction)

Shaalaa.com


Next video


Shaalaa.com


Periodic Classification of Elements part 1 (Introduction) [00:05:36]
S
S
View in app×