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Periodic Table of Elements - PubChem
Melting Point | Periodic Table of Elements - PubChem
Density | Periodic Table of Elements - PubChem
PubChem
Electron Affinity | Periodic Table of Elements - PubChem
Atomic Mass | Periodic Table of Elements - PubChem
Iodine | I (Element) - PubChem
Beryllium | Be (Element) - PubChem
Sodium | Na (Element) - PubChem
Copper | Cu (Element) - PubChem