Four have filled gaps in the periodic table of 92 elements and five have extended it beyond uranium By I. Perlman & G. T. Seaborg Join Our Community of Science Lovers!

The periodic table of elements is a landmark categorization developed in 1869 by the Russian chemist and inventor Dmitri ...

The periodic table arranges all the chemical elements in a specific way. Patterns are visible in the way that elements behave, and this allows us to make predictions about other elements.

the RSC's Visual Elements periodic table. He'll quickly realise the extra information he can get from it - key facts, atomic data, isotopes and much more - and how it will help him with his cases." ...

Three earlier articles in this magazine described the synthesis of elements through element 103. Recent investigations suggest the possibility of extending the list to element 114 and beyond ...