Hund’s Rule
Hund’s Rule or Hund’s Rule of Maximum Multiplicity is a rule in chemistry that deals with the pairing of electrons in energy orbitals. We all know that Aufbau principle talks …
Atom
Charge of an Electron
The charge of an electron is . The charge of an electron is a fundamental constant of physics. Charge of an Electron is Its charge is unaffected by the motion …
Mass of an Electron
The mass of an electron is . This is called the rest mass of the electron. The rest mass of electrons is denoted as . According to Einstein’s special theory …
Difference Between Emission and Absorption Spectra
The difference between Emission and Absorption Spectra is self-explanatory where Absorption Spectrum constitutes the missing incident frequencies of radiation which are absorbed by the sample material when its electrons transition …
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Bohr Radius
The Bohr Radius is a physical constant, that was formulated by Neils Bohr during the Bohr model, thus named after him. It is denoted by . It is approximately equal …
Isotopes
The term Isotopes is important in chemistry as it refers to chemical species with the same atomic number but different masses. It has many uses in our daily life. Definition …
Isobars
Isobars are atoms or nuclei which have the same number of nucleons. In other words, they have the same atomic mass. The term was coined in 1918 by Alfred Walter …
Isotones
Atoms are the smallest unit of matter forming a chemical element. Each atom is composed of a nucleus and several electrons bound to the nucleus. A number of neutrons and …
Isodiaphers
Isodiaphers are nuclei with different neutron (n) and proton (p) numbers, but the same neutron excess. The term isodiapher is used in nuclear physics and chemistry, along with related terms …
Electron Gain Enthalpy
Electron Gain Enthalpy is one of the most basic and important phenomena when studying different elements. This is used in determining the reactivity, nature and type of bond they can …