jagranjosh.com

CBSE Class 10 Science Extra Questions & Answers for Chapter 5 - Periodic Classification of Elements (Based on NCERT Book)

CBSE Class 10 Science Extra Questions and Answers for Chapter 5 - Periodic Classification of Elements are available here for free PDF download. All these questions and answers are prepared by the ...
jagranjosh.com

CBSE Class 10 Science Important MCQs from Chapter 5 Periodic Classification of Elements

Multiple Choice Questions (MCQs) on Periodic Classification of Elements of CBSE Class 10 Science are provided here with answers and their explanation. These questions are good to practice the ...
The Hindu

In ‘rationalisation’ move, NCERT drops periodic table chapter from Class X book

The National Council of Educational Research and Training (NCERT) has decided to omit the chapter on the periodic table from Class 10 Science textbooks as part of the “rationalisation” exercise. The ...
C&EN

Periodic Table of Chemical Elements

This year marks the 150th anniversary of the publication of Mendeleev’s Periodic Table of Chemical Elements in 1869. In celebration, the United Nations Educational, Scientific, and Cultural ...
C&EN

The periodic table is an icon. But chemists still can’t agree on how to arrange it

One hundred fifty years after Russian chemist Dmitri Mendeleev published his system for neatly arranging the elements, the periodic table it gave birth to hangs in every chemistry classroom in the ...