The proposed names for elements 113, 115, 117 and 118 are nihonium, moscovium, tennessine and oganesson respectively, the International Union of Pure and Applied Chemistry (Iupac) has announced. The groups responsible for the discovery of these new elements each put forward their proposed name and symbol after Iupac confirmed their existence in January 2016. The criteria states an element may be named after a mythological figure or concept, geological place, scientist, elemental property, or mineral.
http://www.scientificamerican.com/article/4-new-elements-get-names1/