The term 'Noble Element' refers to a group of elements that are chemically unreactive and found in nature in their uncombined form. These elements include GAS, NEON, and raregas. GAS is a state of matter consisting of particles that are neither solid nor liquid, and is composed of molecules that are in constant motion. NEON is a colorless, odorless, and tasteless noble GAS that is the second-lightest element in the periodic table. Raregas is a group of elements in the periodic table that are all gases at room temperature and pressure, and are relatively rare in Earth's atmosphere.