In 2016, with the addition of four final elements - nihonium, moscovium, tennessine and oganesson - to make a total of 119 elements, the Periodic Table was finally complete, rendering any pre-existing books on the subject obsolete..
In 2016, with the addition of four final elements - nihonium, moscovium, tennessine and oganesson - to make a total of 119 elements, the Periodic Table was finally complete, rendering any pre-existing books on the subject obsolete.