Manikya, also known as ruby, and sapphire are gemstones that are forms of the mineral corundum. Corundum is not an oxide but rather a crystalline form of aluminum oxide (Al₂O₃). Both ruby and sapphire are varieties of corundum, with ruby being red due to the presence of chromium impurities, and sapphire coming in various colors, except red (which would be classified as ruby), often due to different trace elements.

The Word root indicates the total number of carbon atoms present in the longest carbon chain belonging to the compound For example, 'Meth' refers to a chain with 1 carbon atom and 'Pent' refers to a chain with 5 carbon atoms. metalloid in dictionary chemical name is Naoh. Nylon properties: Atomic number of iodine. Dobereiner Traids an Atomic compound.