Number 99 on the periodic table does not occur naturally and is difficult to make and store, challenging researchers who want to study it. By Kenneth Chang Einsteinium is an element with a famous name ...

Robert A Jackson does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Scientists have uncovered some of its basic chemical properties for the first time. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists ...

Einsteinium, the 99th element on the Periodic Table of Elements, is a synthetic element that is produced in extremely small amounts and with a very short lifetime. If the name seems familiar, it's ...