Hello students in this I have explained historical development of periodic table in detail in two part .In this I explained MENDELEEV'S PERIODIC TABLE in detail , it's merits and demerits with explanation which helpful in different competitive exams like UPSC,SSC,CGL,NTSE,RRB NTPC and other exams.I give a PDF file link for practice problems with answer.
PDF file link for practice problems
https://drive.google.com/file/d/1-lCfNnso07WAUImxd6EKsEfBUCqnQhnm/view?usp=drivesdk
History and development of periodic table part-1
/watch/42v5NNhnpxun5
my YouTube channel link:
/channel/UCrGhZeq4mVMRds_9jeUHAow
hashtags
#mendeleevperiodictable
#class11
#class10ntse