Earth’s core could contain helium from the early solar system. The noble gas tucks into gaps in iron crystals under high pressure and temperature.

Primordial helium, or 3 He, on the other hand is not formed on Earth and contains two protons and one neutron. “I have spent many years studying the geological and chemical processes that take ...

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 ...

If an atom has 2 protons, that’s an atom of the element helium. If it has 7 protons, that’s nitrogen. But the logic of the periodic table also relies upon the number and organisation of electr ...

Helium is notoriously hard to contain because, like hydrogen, it is a tiny little atom even by atomic standards ... If the mechanical clock element got gummed up with helium, that would explain ...

For example, a helium atom has an atomic mass of 4, but an atomic number (or positive charge) of 2. Since electrons have almost no mass, it seemed that something besides the protons in the nucleus ...

Whereas helium-4 is a common product of the decay of radioactive elements, helium-3 comes almost entirely from the initial cloud of dust and gas that formed the solar system. This primordial ...

This diagram shows helium. Is helium a solid ... a specific ratio of two hydrogen atoms to one oxygen atom. Compounds made from non-metal elements that are bonded together usually form molecules.

"Though we carried out the material syntheses under high temperatures, the chemical-sensing measurements were done at extremely cold, or cryogenic, temperatures. This way prevented helium from ...

The atom with eight protons in its nucleus (atomic number 8) is oxygen. Each energy level holds a certain number of electrons before electrons go into the next level. 1st Period: Hydrogen and ...