The periodic table as we know it is widely credited to Dmitri Mendeleev, a Russian chemist who kept reference cards on the elements and their atomic weight.

The periodic table of the elements This figure is a tabular arrangement of the spi'al (fig. 2) and represents a “chart of matter” with the longitudes or groups and latitudes or periods.

Syllabus: The NTA has put the official JEE Main 2026 Syllabus online on their website: jeemain.nta.nic.in. If you're planning to take the JEE Main 2026 exam, you can find the full syllabus there. It ...

Scientists have found that our bodies need 28 different elements to function properly. These are almost one-quarter of the periodic table and are mainly found in the first four periods.

Dream experts have plenty of possible answers.We all dream — but why? As with many mysteries of the mind, science doesn’t have one neat answer. “You’ll get as many answers to the question ...