Two scientists in Moscow have proposed replacing the periodic table as the chief way to organize elements. Rather than ordering by atomic number (the number of protons in the nucleus) the chart lists ...

Engineering section of JagranJosh brings Online Test for JEE MAIN, JEE Advanced, UPSEEE, WBJEE and other engineering entrance examination to help the students in improving their performance and ...

THAT, as concluded by Prof. Nicholson (NATURE, February 5, p. 630) the atoms of lithium, beryllium, and boron cannot consist of 3, 4, 5 electrons rotating round a nucleus of 3e, 4e, 5e, respectively, ...

The chapter ‘Periodic Classification and Periodicity in Properties’ is one of the most important chapters in the syllabus of JEE Main and JEE Advanced Entrance Examination. About 2-3 questions are ...

Mankind has known materials such as gold, silver, mercury, iron, phosphorous, sulphur and others since antiquity. Alchemists tried making gold out of “base” metals — with no success. But we had to ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...