Unit of Radioactivity
Unit of radioactivity Radioactivity is a spontaneous disruptive process. It refers to the particles which are emitted from nuclei as a result of nuclear instability.…
Physics
Radioactivity in Nuclear Physics
Radioactivity in Nuclear Physics Radioactivity is a spontaneous disruptive process. The elements which have atomic masses more than 206, this process occurs in them. In…
Stable and Unstable Nuclei
Stable and Unstable Nuclei: We know at the center of the atom there exists nucleus. A nucleus contains positively charged protons and inert neutrons. Lighter…
Proton-neutron Theory
Proton-neutron Theory In 1932, scientist Chadwick discovered neutron. Neutron is a chargeless particle whose mass is about the same mass of the proton. After the…
Structure of the Nucleus in Atom
Structure of the Nucleus in Atom In 1911 scientist Rutherford and his associates Geiger and Marsden from α-particle scattering discovered that inside the atom at…
Limitation of Bohr’s Atom Model
Limitation of Bohr’s Atom Model Bohr’s orbits are called permanent orbits because while orbiting these orbits electrons do not radiate energy. Although during orbiting electrons…
How Bohr’s Atom Model overcomes the limitations of Rutherford’s Model?
In 1913, famous Dutch scientist Niels Bohr proposed this model of the atom and in 1922 he got Nobel Prize for this discovery. Bohr proposed…
Bohr’s Atom Model
Bohr’s Atom Model In 1913, famous Dutch scientist Niels Bohr proposed this model of an atom and in 1922 he got Nobel Prize for this…
Atomic Mass Unit (amu)
Atomic Mass Unit (amu) The mass of an atom is exceedingly small. So, its actual mass is not considered. The conventional unit of mass in…
Shell Temperature
Shell Temperature The temperature of the skin or tissues immediately underlying the skin is called shell temperature. This temperature includes the temperature of the skin,…
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