The periodic table is not just the story of discoveries aided by better technological innovations, it’s also the story of sheer genius The National Council of Educational Research and Training (NCERT) ...

The periodic table of elements, or Mendeleev’s table, was created in 1869 by Russian chemist Dmitri Mendeleev. This table organizes all known chemical elements by their atomic number, or the number of ...

Goodbye Darwin, Mendeleev & Mendel! To make for a lighter academic load after the Covid pandemic, the National Council of Educational Research and Training has decided to drop chapters on the periodic ...

A century and a half ago, a Russian chemistry professor published a classification of all the known elements, organized by atomic weight. Today, the system that he created for his students — plus some ...

Would it surprise you to know that the periodic table, as we know it, isn’t the first table of elements? That even the order of the elements has changed from its original structure? Like many other ...

Who made the first periodic table? Other scientists had previously identified periodicity of elements, but on March 6, 1869 Dmitri Mendeleev (photo) presented the first periodic table. Mendeleev was a ...

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 ...

Dmitri Mendeleev was a Russian chemist and inventor who formulated the Periodic Law and the periodic table of elements. Mendeleev was born in the Siberian town of Tobolsk. His father died when ...

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