A closed cage-like molecule that can be opened

Researchers at Kanazawa University and the University of Tsukuba report in Chemistry – A European Journal the synthesis of a closed molecular cage with areas that can be opened. The opening is achieved through chemical ...

In quest of the coldest possible antihydrogen

Currently, one of the major goals in ultracold science is to cool antihydrogen atoms to as close to absolute zero as possible. Ultracold antihydrogen would pave the way toward ultraprecise antimatter experiments that could ...

Taming a poison: Saving plants from cyanide with carbon dioxide

A team of Canadian and Finnish scientists has discovered cyanoformate—a simple, unstable ion involved in the fruit-ripening process that has evaded detection for decades. Their findings reveal that the surrounding medium ...

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Ion

An ion is an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving it a net positive or negative electrical charge. The name was given by physicist Michael Faraday for the substances that allow a current to pass ("go") between electrodes in a solution, when an electric field is applied. It is from Greek ιον, meaning "going".

An ion consisting of a single atom is an atomic or monatomic ion; if it consists of two or more atoms, it is a molecular or polyatomic ion.

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