refer Periodic Table
There are 118 known elements on the periodic table.
There are currently 118 elements in the periodic table.
As of June 2017, a total of 118 elements are known.
Elements with atomic number 112 to 118
There are currently 118 known elements.
There are currently 118 confirmed elements on the periodic table.
118 (all elements from #1 to #118).
118 elements
the total number of elemetns humanly known is 118
118 elements are in the periodic table of elements; some of them are still unnamed (January 2013).
All together there are 118 elements on the periodic table, 94 of which occur naturally on earth. http://en.wikipedia.org/wiki/Periodic_table_%28standard%29 They do also show a wide format of periodic table with additional elements that have not been discovered, isolated, or synthesized on earth. http://en.wikipedia.org/wiki/Periodic_table_(wide)
There are 117 elements in the periodic table. Elements 1-116 and element 118. IMPROVED ANSWER --------------------------------------------------------------------------------------- 118, but element 117 is so unstable they do not officially count it as being an element on the periodic table yet.