Periodic Classification of Elements Lecture 1 10th Science 1 | Maharashtra State Board Science Std 1

In this video I have explained Chapter 2 - Periodic Classification of Elements for students of 10th standard from the Maharashtra State Board.
In this lecture we cover the concepts of Dobereiner’s Triads and Newlands’ Law of Octaves .
The following questions have also been answered in the video:
Can you recall?
1. What are the types of matter?2. What are the types of elements?3. What are the smallest particles of matter called?
4. What is the difference between the molecules of elements and
compounds?
Can you tell?
Identify Dobereiner’s triads from the following groups of
elements having similar chemical properties.1. Mg (24.3), Ca (40.1), Sr (87.6) 2. S (32.1), Se (79.0), Te (127.6) 3. Be (9.0), Mg (24.3), Ca (40.1)
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