Gamma rays or gamma radiation is a stream of high-energy electromagnetic radiation given off by an atomic nucleus undergoing radioactive decay. Definition of Gamma Rays Gamma rays are ionizing in nature, which means that they can release electrons from atoms. Gamma rays are biologically dangerous and can cause animal cells to decay. Usually, gamma rays … Read more
Definition of Beta Rays Beta rays are made up of beta particles. A beta particle has the same mass and charges as an electron. It is emitted from the nucleus of an atom during radioactive decay. It can either be negatively charged (negatrons) or positively charged (positrons). Collision interactions of beta particles are somewhat different … Read more
Definition of Alpha Rays Alpha rays is made up of alpha particles. An alpha particle, structurally equivalent to the nucleus of a helium atom, consists of two protons and two neutrons. Other Definition of Alpha Rays During nuclear decay, the liberated energy (decay energy) is shared between the daughter nucleus and the alpha particle. The … Read more
In 1926, Austrian physicist Erwin Schrödinger (1887–1961) used the wave-particle duality of the electron to develop and solve a complex mathematical equation that accurately described the behaviour of the electron in a hydrogen atom. The quantum mechanical model of the atom comes from the solution to Schrödinger’s equation. Quantization of electron energies is a requirement … Read more
If you are looking for some important questions of Chemistry then you are at the right place. Here are some important questions of Chemistry for you. Q.1- What is the SI unit of mass? How is it defined? Solution: The SI unit of mass is kilogram (kg). Kilogram is defined as the mass of platinum-iridium … Read more
Rutherford’s Atomic Model – The plum pudding model is given by J. J. Thomson failed to explain specific experimental results associated with the atomic structure of elements. Ernest Rutherford, a British scientist, conducted an experiment and based on the observations of this experiment, he proposed the atomic structure of elements and gave Rutherford Atomic Model. … Read more
There is a very close relation between Normality and Molarity. Normality can be described as a multiple of molarity. While molarity refers to the concentration of a compound or ion in a solution. Normality refers to the molar concentration only of the acid component or of the base component of the solution. Normality The gram … Read more
Discovery of Dalton’s Atomic Model By far, Dalton’s most influential work in chemistry was his atomic model. Attempts to trace precisely how Dalton developed this model have proved futile. Even Dalton’s own recollections on the subject are incomplete. He based his theory of partial pressures on the idea that only like atoms in a mixture … Read more
J.J.Thomson Atomic Model: J.J. Thomson proposed that an atom consists of a uniform sphere in which positive charge is uniformly distributed. The electrons are embedded into it in such a way as to give the most stable electrostatic arrangement. The sphere’s radius is of the order of 10-10 m, which is equal to the size … Read more
Atomic Models: After discovering electrons and protons, the scientists started thinking of arranging these particles in an atom. Different models were proposed to explain the distribution of subatomic particles in an atom. There has been a variety of atomic models throughout the history of atomic physics that refers mainly to a period from the beginning … Read more