In the periodic table of elements there is one golden rule for carbon, oxygen, and other light elements. Under high pressures they have similar structures to heavier elements in the same group of ...

This table includes all 118 known elements, providing their names, symbols, and atomic numbers. Image Source: yourdictionary.com. Classification of Elements of Periodic Table ...

A section of the periodic table. Nitrogen (red) was thought to not have allotropes with similar structures to heavier elements in its group – phosphorus, arsenic, antimony and bismuth (green ...