till which element periodic table has to be memorize for class 11th?
Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/do-we-need-to-learn-periodic-table-i-want-expert-answer/science/6472036
https://www.meritnation.com/ask-answer/question/do-we-need-to-learn-periodic-table-i-want-expert-answer/science/6472036