The precursors of heavy elements might arise in the plasma underbellies of swollen stars or in smoldering stellar corpses.

The periodic table of elements, or Mendeleev’s table, was created in 1869 by Russian chemist Dmitri Mendeleev. This table organizes all known chemical elements by their atomic number, or the ...

An alternative periodic table of elements focusing on highly charged ions reveals new science that could support the quest for more accurate optical atomic clocks By Chris Simms 28 April 2025 ...

The periodic table is in the opposite corner above a bench with a microscope (second image). Once you have both, you can start to piece together the answer.

“Using a laser-based method, we investigated fermium atomic nuclei, which possess 100 protons, and between 145 and 157 neutrons. Specifically, we studied the influence of quantum mechanical effects on ...

Specifically, we studied the influence of quantum mechanical shell effects on the size of the atomic nuclei. This allowed shedding light on the structure of these nuclei in the range around the known ...

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, atomic weight and the broad group they live in.

Project the image Atomic Size and Mass. Tell students that this chart is based on the periodic table of the elements but that it only includes the first 20 elements out of 118. A representation of an ...

A new study lays the groundwork to expand the periodic table with a search for element 120, to be made by slamming electrically charged titanium atoms, or ions, into a californium target.