chemistry - freebase-schema/freebase GitHub Wiki Chemistry Commons This is chemistry commons Types Here are the following types in Chemistry Commons Chemical Compound Isotope Chemical Element Chemical Series Phase of Matter Chemical Bond Periodic table block Isotope decay Radioactive decay mode Chemical Element Discoverer Particle spin Atomic mass Electron affinity Chemical Classification Molecular entity Solubility relationship Solubility ⚠️ **GitHub.com Fallback** ⚠️