Get Exam Updates
📢Get 20 RRB Group-D mocks for just Rs. 149. Enroll now
FREE CONTENT
COURSES
AP
TS
The credit for classifying the elements on the basis of their atomic masses goes to:
John Dalton
John Alexander Reina Newlands
Dmitri Mendeleev
Johann Wolfgang Dobereiner
Create a FREE account and get:
Ask doubts feature is currently unavailable for you. You can reach us at support@cracku.in for any further details/doubts.
Boost your Prep!