At the far end of the periodic table is a realm where nothing is quite as it should be. The elements here, starting at atomic number 104 (rutherfordium), have never been found in nature.

Columns in the periodic table are called groups or families. Elements within the same group share similar properties because they have the same number of valence electrons (electrons in the ...

Mendeleev, more than any of his contemporaries, had an “ear” for the elements. Although 19th-century scientists were only aware of a few dozen elements (scientists now recognize a whopping 118), his ...

Scientists can be surprised by elements that perform better, cost less, and so forth. And, they add, “It has been known that some of the nuclear magic numbers are changed in neutron-rich nuclei.” ...

Among these are familiar elements such at helium, oxygen, and calcium. The Nucletouch table places these 'magic nuclei' at its center, providing a new perspective on the elements.

INTRINSIC ORDER Every element on this venerated table has its own story. All together, they capture the entire repertoire of known chemistry. E. Otwell By Elizabeth Quill January 8, 2019 at 12:29 pm ...

The elements' temporary names stem from their spot on the periodic table — for instance, ununseptium has 117 protons. Each of the discovering teams have now been asked to submit names for the ...

In their momentary life span, atoms of lawrencium, element 103, may have left a lasting impression on the structure of the periodic table. For the first time, researchers have measured a basic ...

Scientists at the Japan Atomic Energy Agency have studied lawrencium for first time. The radioactive element is extremely difficult to make and has a half-life of just 27 seconds.

An international team of physicists and chemists reports in Nature 1 that it takes very little energy to strip an electron out of an atom of lawrencium, element 103. The measurement is a tour de ...

The table is so organized that elements whose chemistry is almost identical are grouped together in blocks of connected by solid arrows (all the inert gases–helium, neon, etc.–fall in the ...