Understanding the fundamental building blocks of matter is one of the cornerstones of modern science. One such building block is the atom, the smallest unit of an element that retains its chemical ...

Each element has a unique atomic number, which represents the number of protons in its nucleus. The atomic mass is the total number of protons and neutrons within an element’s nucleus. The periodic ...

Molecular and Atomic Mass of Elements: There are various concepts in chemistry that require a basic understanding to see the bigger picture. One such knowledge is knowing the key terminologies and ...

Atomic Number and Mass Number of Elements: Atoms are the building blocks of matter. They are responsible for the format of all living and non-living things. Understanding their molecular structure and ...

Thank you for bringing to my attention the recent International Union of Pure & Applied Chemistry report “Atomic weights of the elements 2009” (C&EN, Dec. 20 ...