It took centuries to grasp the idea of chemical elements ... upon the table): Fig. 1. The 'periodic chain of elements The elements are arranged according to increasing atomic number or atomic ...

there is practically no decrease in atomic weight. Now in the Periodic Table the valency for oxygen, an electro-negative element, increases regularly as we pass from Group 0 to Group VIII ...

The National Medical Commission (NMC) released the NEET UG 2025 syllabus, covering Physics, Chemistry, and Biology. T ...

NEET UG 2025 Syllabus Announced: The National Medical Commission (NMC) has officially released the syllabus for the National ...

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.

Since the 1950s, scientists have used radio waves to uncover the molecular "fingerprints" of unknown materials, aiding in ...

In a significant scientific breakthrough, engineers at Penn Engineering have developed a refined form of nuclear quadrupolar ...

Over the next 400 million years, global diversity showed little overall trend and was marked by periodic, massive losses of diversity classified as mass extinction events. The largest of these ...

The discovery of radioactivity in 1896 by Henri Becquerel from a uranium sample, and subsequent research by Enrico Fermi and others from 1934 on, eventually showed that 235 U can undergo a chain ...