The periodic table has 118 elements in total, and it seems to be expanding constantly. Just last year, they added elements 113, 115, 117, and 118: nihonium (Nh), moscovium (Mc), tennessine (Ts ...

Nihonium (Nh), a radioactive synthetic element, joined the periodic table of elements in November five years ago with the atomic number 113. More than a century ago, a similar sounding but ...