Which element in the noble gas group as of 2015 has the largest atomic number?

1 Answer
Jun 18, 2018

#118# Oganesson

Explanation:

Given: noble gas with the largest atomic number

The noble gasses are in the last column of the periodic table.

Until recently Radon with an atomic number of #86# was the noble gas with the largest atomic number, but atomic number #118# Oganesson has recently (December 2015) been added to the periodic table.