Flexi Says: Most recent depictions of the periodic table show 118 elements in periodic table. Larger elements (atomic numbers 101 and above) are formed by fusing nuclei of smaller elements together. These synthetic elements tend to be very unstable, often existing for less than a second, so little is known about them. Elements up to atomic number 112 are known (not in any detail, however), and some evidence for elements 113 and above had been put forth, with elements 114 and 116 being added to the table in 2011. In December 2015, the IUPAC verified the existence of four new elements 113, 115, 117, and 118 and approved their addition to the periodic table with the names nhonium (Nh), moscovium (Mc), tennessine (Ts), and oganesson (Og), respectively.
