The MRI machine uses liquid helium to cool its powerful magnets ... it is a tiny little atom even by atomic standards. It also expands about 750 times when it turns into a gas, according to ...

The fusion process sees two hydrogen isotopes, such as tritium, fuse together under intense heat and pressure to form a ...

In order to control the electron-photon states, the researchers used laser pulses that dispersed ... these transient quantum states in a helium atom," says Bruder. "The technique we've developed ...

A Pulsar Helium drill site as seen Jan. 13 near Babbitt, Minn. Canada-based Pulsar Helium has discovered extremely high concentrations of helium in tests of underground deposits. Helium is best ...

For example, a helium atom has an atomic mass of 4 ... especially those of Frederic and Irene Joliot-Curie. They used a different method for tracking particle radiation. Chadwick repeated their ...

It is not the same as a helium atom as it does not contain any electrons but it is written with the same chemical nomenclature as a helium atom: \(_{2}^{4}\textrm{He}\) When a radioactive atom ...

The atom is neutral as it has two positive protons and two negative electrons. A helium atom that has lost or gained an electron is an ion. The ion has two positive protons but one electron so it ...

PAULI'S ‘Exclusion Principle’ applied to the simplest case of the two-electron or two-proton system (helium atom, hydrogen molecule) is usually stated as follows: if the electrons (or protons ...