atoms and nuclei

It is clear from the figure that the region between the two nuclei where the two 1s-atomic orbitals overlap has high electron density. Such a molecular orbital is called bonding molecular orbital. It is designated as s 1s (called sigma 1s) orbital. The sigma ( s ) signifies th..

Since the covalent bond is localised in between nuclei of atoms, it is directional in natur..

Average binding energy per nucleon is the total binding energy divided by the mass number of the nucleu..

Nuclear Reactor - A nuclear reactor is an installation where a self-sustaining nuclear fission takes place in a controlled manner and energy released is used for constructive purpose..

The orbital overlap - The sharing of orbitals between two atoms is possible only when the atoms are close enough to overlap their orbitals. Thus, orbital overlap is necessary for the sharing of electrons and bond formation. With the orbitals coming close together, there is an in..

The process of splitting of a nucleus of a heavy atom into a number of light nuclei with the liberation of large amount of energy and two or three neutrons is called nuclear fissio..

A phenomenon of emission of an electron from a radioactive nucleus...

Pictorial representation of the a particles through different angles. A radioactive source S emitting a particles was collimated into a fine beam and made to fall on a thin gold foil. The a particles scattered in all directions. These produced bright flashes on falling on the fluorescent..

Can we imagine a world without oxygen, nitrogen, water or carbon dioxide? Without any of these there would be no life at all. All the above mentioned compounds are covalent compounds formed by sharing of electrons. Non-metal atoms share the valence electrons and form molecules. Thes..