Here’s how long the periodic table’s unstable elements last
Some of these isotopes have half-lives of seconds or less, while others last and last
![uranium on the periodic table](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/03/030219_scivis_feat_free.jpg?fit=860%2C460&ssl=1)
HALF-LIFE COUNTDOWN Generally, for elements after uranium on the periodic table, the further along elements are — the higher their atomic number — the less time they endure.
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