Atomic Structure

Quantum numbers can be utilized to portray the direction and the development of an electron in a particle. What Are Quantum Numbers? The set of numbers utilized to depict the position of an electron in a particle is called quantum numbers. There are four main quantum numbers: azimuthal, principal, spin and magnetic quantum numbers. These […]

Moseley’s Law: An Overview Henry Moseley’s work reinforced the one-to-one identification of an atomic number Z with each element shortly after Rutherford’s scattering hypothesis was validated by experiment (about 1913). (1887- 1915). He calculated the energy released when low-level electrons change orbitals using Bohr’s atomic structure model. Because this energy has a strong relationship with

Pauli’s exclusion principle is an important concept in chemistry devised by physicist Wolfgang Pauli. The Pauli exclusion principle states that a maximum of two electrons can only occupy a single atomic orbital. However, this is only applicable when the electrons spin in the opposite direction. The Pauli Exclusion principle is a significant concept that helps

Bohr’s Theory (also known as Bohr’s Atomic Model) Both Thomson’s and Rutherford’s atomic models failed to provide satisfying answers to any questions about an atom’s energy or stability. Niels Bohr proposed an atomic structure model in 1913, describing an atom as a small, positively charged nucleus surrounded by electrons orbiting in circular orbits around the

The primary quantum number (symbolised n) is one of four quantum numbers allocated to each electron in an atom to characterise the state of that electron in quantum mechanics. It is a discrete variable since its values are natural integers. The primary quantum number was designed to distinguish between different energy levels in the semiclassical

In accordance with Hund’s rule, Every orbital in the sub level is singly occupied prior to the double occupancy of any orbital in the sub level. In order to maximise total spin, all electrons in a single occupancy orbital must have the same spin as one another. An electron will not pair with another electron

Latest: NEET 2024 Paper Analysis Recommended: NEET Rank Predictor 2024 See more: NEET Result 2024 The number of electrons present in each subshell surrounding the nucleus of an atom is represented by its electronic configuration. The orbitals are denoted by the letters s, p, d, and f, and the maximum number of electrons present in these orbitals is

A diagrammatic depiction of the three-dimensional configurations of component particles in a crystal, known as the crystal lattice, in which each constituent particle is shown as a point in space. There is extremely little room between the atoms that make up a crystal lattice because the atoms are packed so closely together in the lattice.

The group 18 elements include helium, argon, krypton, neon, xenon, and radon. In the outermost orbit, the members of the group possess eight electrons. However, helium has only two electrons.  Group 18 elements are chemically unreactive and are gases that do not form compounds. They are located in the extreme right of the periodic table

The azimuthal quantum number is a quantum number that characterises the form of an atomic orbital and defines its orbital angular momentum. The azimuthal quantum number is the second in a series of quantum numbers that describe an electron’s distinct quantum state (the others being the principal quantum number, the magnetic quantum number, and the