MR. ROY GARDNER gave an interesting paper on “A Method of Setting out the Classification of the Elements” at a recent meeting of the New Zealand Institute. The paper included the accompanying Table, ...

Here you get the CBSE Class 10 Science chapter 5, Periodic Classification of Elements: NCERT Exemplar Problems and Solutions (Part-II). This part of the chapter includes solutions for Question No.1 to ...

In this video excerpt from NOVA's "Hunting the Elements," New York Times technology columnist David Pogue examines how atomic structure determines reactivity. Meet Theo Gray, chemist and author, who ...

The periodic table has been a vital foundational tool for material research since it was first created 150 years ago. Now, researchers add an entirely new dimension to the table, offering a new set of ...