Matter is made up of very small parts called atoms. Atoms can combine in different numbers and in different ways to make different molecules. Atoms and molecules make up all of the different ...

Atoms are the building blocks of everything. Atoms can form strong bonds with each other, making molecules. Symbols and formulae Letters from the alphabet are used to represent chemical elements ...

When two hydrogen atoms get close enough, the electron from each atom feels an attraction from the proton in the other atom's nucleus. This attraction pulls the atoms together. The electrons end up ...

The scientist John Dalton carried out a series of experiments. He concluded that all matter was made of tiny particles called atoms. He suggested that an atom was a tiny solid ball. He published ...

The Atoms for Peace and Development motto summarises the IAEA's mission, which is to ensure that nuclear technology is used only for peaceful purposes and to help Member States use this remarkable ...

For the first time, researchers have captured nanoscale video footage of hydrogen and oxygen atoms combining into water out of "thin air" — thanks to a rare metal catalyst. The super-efficient ...

With these powerful new eyes, the team was able to see that hydrogen atoms enter the palladium, causing the metal to expand as its own atoms are pushed farther apart. But more importantly ...

Quantum mechanics just can’t keep from getting freaky. The latest thing is negative time, and how light going through a cloud of atoms might appear to come out before it goes in. Unfortunately ...

Up to this point, the material stretches in an elastic or reversible manner. All materials are made up of a collection of atoms. Elasticity can be best understood by imaging the atoms are connected by ...

For a little more than a century, chemists have believed that strong atomic links called covalent bonds are formed when atoms share one or more electron pairs. Now, researchers have made the first ...

But until now the elusive substance has been almost impossible to analyse because its atoms move around so much. Now scientists have a workaround - freezing it with lasers. "Physicists are in love ...