nuclear forces

In spite of the strong electrostatic force of repulsion between protons, nucleus of most elements are stable. This is because of the strong forces of attraction, which hold together the nucleons in that tiny volume. These forces are short-range forces and ar..

It is the force of attraction existing between the nucleons i.e., between two protons, or two neutrons, or a proton and a neutron. Nuclear force is a short range force and it is effective only when the nucleons are closely packed inside the nucleus. In a hea..

Nature of Nuclear Forces - Physicists have categorized all forces occurring in nature under gravitational, electromagnetic, strong nuclear and weak nuclear forces. Both gravitational and electromagnetic forces can be expressed as..

Protons and neutrons Nuclear forces Electromagnetic repulsion between the protons Nuclear fusion and fission reactions Radioactive isotopes Three most common forms of radioactive decay (alpha, beta, gamma) Changes in the nucleus in each type of decay Alpha..

Protons and neutrons Nuclear forces Electromagnetic repulsion between the protons Nuclear fusion and fission reactions Radioactive isotopes Three most common forms of radioactive decay (alpha, beta, gamma) Changes in the nucleus in each type of decay Alpha..

Nuclear Fission - Neutrons are considered as the best projectile particles to hit the target (uranium) nucleus. The uranium may absorb these neutrons and become 9 2 U 2 3 6 which later splits into two smaller nuclei. In addition two neutrons are released and energy is also released. This ..

When lighter nuclides fuse together to form a heavy nucleus in a process called nuclear fusion, energy is produced and mass is lost. For example, two atoms of heavy hydrogen may fuse together to form helium and a neutron: The sum of the exact masses of the helium atom and the neutron i..

On the basis of the scattering experiment, Rutherford described the structure of the atom as: An atom consists of a positively charged nucleus surrounded by electrons that move around it. The positive charge of the nucleus is due to the protons. Electrons and neutrons are held together by cou..

When the value of Z becomes greater than 82, some nuclides attain greater stability (i.e., decay by a - emission) which reduces the initial N/Z value to (N - 2) / (Z - 2). Reduction of Z leads to the reduction of p - p repulsions. Example of a - emissio..

Now if the H atoms are forced to come closer than the equilibrium inter-nuclear distance, the repulsive forces start predominating and the energy of the system increases sharply. ..