Laboratory of Organic and Medicinal Chemistry https://orgsyn.in/ 2026-04-03T17:53:58+00:00 https://orgsyn.in/ https://orgsyn.in/_media/favicon.ico text/html 2023-02-18T21:34:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://orgsyn.in/courses/major/attomic_structure?rev=1676756055&do=diff The atom is the basic unit of matter and is composed of three types of subatomic particles: protons, neutrons, and electrons. Protons are positively charged particles found in the nucleus (the central core) of the atom. Neutrons are neutral particles also found in the nucleus. Electrons are negatively charged particles that orbit the nucleus in shells or energy levels.here are some additional models and concepts related to atomic structure: