Helium ion, two neutrons, two protons and three electrons. Nuclear fission close ... but before the neutrons can collide with fresh uranium nuclei, they need to be slowed down.

and uranium - are made up of single atoms. Atoms in turn, are made of a nucleus containing protons and neutrons, and a cloud of electrons loosely orbiting that nucleus. Each element is ...

VIENNA (AP) — Iran has accelerated its production of near weapons-grade uranium as tensions between Tehran and Washington rise after the election of U.S. President Donald Trump, a report by the ...

They include thorium, uranium, neptunium, plutonium and americium. Atoms of these elements have between 90 and 103 electrons, some of which can be found in their 5f orbitals. The arrangement of ...

An international team of researchers at the Karlsruhe Institute of Technology (KIT) has developed a new method for analyzing actinides. The method provides unique insights into the electronic ...