Nuclear fission—when the nucleus of an atom splits in two, releasing energy—may seem like a process that is fully understood.

with electrons orbiting around the nucleus. Nobel prize-winning physicist Niels Bohr described these electrons in the atom as existing in a shell structure. The electrons circulate around the ...

The word magic is not often used in the context of science. But in the early 1930s, scientists discovered that some atomic ...

For instance, in Bohr’s model of the atom, he proposed that energy levels of electrons are discrete and that the electrons revolve in stable orbits around the atomic nucleus but can jump from ...

"The word magic is not often used in the context of science. But in the early 1930s, scientists discovered that some atomic ...

Nuclear fission - when the nucleus of an atom splits in two ... drop" theory first posited by Lise Meitner and Otto Frisch ...

Created by the Danish physicist Niels Henrick David Bohr, it shows orbits where there are electrons and in the center a small nucleus. Bohr continued the theory that had been developed by physicist ...

The magic numbers known to scientists are 2, 8, 20, 28, 50, 82 and 126. They are the same for both protons and neutrons. When a nucleus has a magic number of protons or neutrons, then the particular ...

But we’re not finished yet – because even Niels Bohr’s model needed refining and later experiments from Rutherford again led to the idea that the positively charged nucleus in the atom could ...