After a year of fastidious planning, a microscopic sample of the ultra-rare radioactive element berkelium arrived at a ...

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

The Synthetic Elements There are nine of them, including the newly manufactured berkelium. Four have filled gaps in the periodic table of 92 elements and five have extended it beyond uranium ...

Mitch André Garcia considers the disputed discovery of element 104 and takes a look at how the chemistry of this synthetic element is developing. Rutherfordium, the 104th element on the periodic ...

The Synthetic Elements: IV Three earlier articles in this magazine described the synthesis of elements through element 103. Recent investigations suggest the possibility of extending the list to ...