Atoms are the building blocks of all matter, from the air we breathe to every cell in our bodies. Yet despite their presence everywhere, no one has truly seen an atom with the naked eye ,until ...

The Geiger-Marsden experiment, also called the gold foil experiment or the α-particle scattering experiments, refers to a series of early-20th-century experiments that gave physicists their first ...

This, however, is probably a secondary effect resulting from the primary expulsion of a β particle from the nucleus. In 1913, only the barest outlines of the structure of the atom had been drawn.

The structure of the atom was discovered early in the 20th Century. Scientists found that the atom was made of smaller pieces called subatomic particles -- most notably the proton, neutron, and ...

In this diagram of methane (CH₄) the chemical bond between atoms is shown as a stick. One molecule of the compound methane is made from one carbon atom and four hydrogen atoms.

The Large Hadron Collider, the atom smasher that has hunted for antimatter and the elusive Higgs boson, shut down in February 2013 for an overhaul and upgrade. Now, scientists are getting ready to ...

A single particle has been used to perform the first full quantum simulations of how certain molecules react to light. The researchers who carried out the feat say that their minimalistic approach ...

In this diagram of methane (CH₄) the chemical bond between atoms is shown as a stick. One molecule of the compound methane is made from one carbon atom and four hydrogen atoms.