The periodic table has long-since filled in Mendeleev's gaps and has added new elements. It has even changed the weights of other elements. The periodic table is continually being changed as new discoveries are made and new theories are developed to explain the behavior of chemicals.
When was the last time the periodic table updated?
The periodic table was last updated in 2016 with four new chemical elements. What is a chemical element?
What are the most recent changes to the periodic table?
In December, 2016, four new elements were added to the periodic table:
- Nihonium (Nh), element 113.
- Moscovium (Mc), element 115.
- Tennessine (Ts), element 117.
- Oganesson (Og), element 118.
