- Halogen (Wikipedia)
The halogens (/ˈhælədʒən, ˈheɪ-, -loʊ-, -ˌdʒɛn/) are a group in the periodic table consisting of six chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and the radioactive elements astatine (At) and tennessine (Ts), though some authors would exclude tennessine as its chemistry is unknown and is theoretically expected to be more like that of gallium. In the modern IUPAC nomenclature, this group is known as group 17.
- Seasoning (cookware) (Wikipedia)
Seasoning or curing is the process of coating the surface of cookware with a bioplastic formed from heated fat or oil in order to produce a heat, corrosion, and stick resistant hard coating. It is required for cast-iron cookware and carbon steel, which otherwise rust rapidly in use, but is also used for many other types of cookware, as it helps prevent food sticking.