Chemistry textbooks and posters everywhere need to change. Four new elements have been added to the periodic table, completing its seventh row.

The International Union of Pure and Applied Chemistry (IUPAC) and the International Union of Pure and Applied Physics (IUPAP) have confirmed the discovery of elements 113, 115, 117 and 118. Groups of researchers in the U.S., Japan and Russia shot lighter atoms at each other to create these elements.

They will conduct a meeting to name these elements later based on mythology, other scientists, minerals, places or the element’s properties. For the time being, they gave the element’s placeholder names and symbols, which are: ununtrium (Uut), ununpentium (Uup), ununseptium (Uus) and ununoctium (Uuo).

Part of the process for new elements to be accepted is that there must be multiple detections in different experiments, so deciding who exactly made the discovery is very controversial. A team at a research group called RIKEN in Wako, Japan is credited with the discovery of element 113. The other three elements’ discoveries were credited to teams in Russia and the U.S that were working together.

“The chemistry community is eager to see its most cherished table finally being completed down to the seventh row,” said Jan Reedijk, president of IUPAC’s inorganic chemistry division.