The Atomic Spectroscopy Group provides standardized measurements used across wide swaths of science and industry. The Trump ...

Gamma-ray bursts, the most powerful kinds of explosions known in the cosmos, may help provide a piece of the puzzle when it ...

There are 118 elements in the periodic table, each with a unique symbol and atomic number. Symbol: A one or two-letter abbreviation used to represent the element. Atomic number: The number of ...

This is the second part of a three-part series written by Carolyn Krause. Many of the elements were synthesized using an Oak Ridge reactor.

The team at the National Institute of Standards and Technology publishes measurement data crucial for advanced research in ...

The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

and the apparently widely different assumptions which have been introduced in various recent attempts to develop a theory of atomic constitution capable of accounting for other physical and ...

More than 75 years after its initial discovery, scientists have created an organometallic molecule containing the transuranium element berkelium. According to a new study, the electronic signature of ...

He wrote the properties of the elements on pieces of card and rearranged them until he realised that, by putting them in order of increasing atomic weight, certain properties of elements regularly ...

Relative atomic mass is not the same as mass number. Mass numbers close mass numberThe number of protons and neutrons found in the nucleus of an atom. are whole numbers because they are the number ...

What are Endangered & Critical Elements? Of the 118 elements that make up everything—from the compounds in a chemist’s arsenal to consumer products on the shelf—44 will face supply limitations in the ...

All of these systems are made up of dissimilar materials that, where they join at the atomic scale, display very different behaviour from what might be expected of the bulk materials. Advances in ...