CHEMISTRY HOLIDAY ASSIGNMENT

Quantum Numbers

This video is based on basic atomic structure

Quantum Numbers

The set of numbers used to describe the position and energy of electron in an atom are called Quantum Numbers. Quantum Numbers were introduced to explain spectra of atoms.

There are four types of Quantum numbers. They are : Principal Quantum Number Azimuthal(angular) Quantum

Number Magnetic Quantum Number Spin Quantum Number

Quantum number

Azimuthal

magnetic

spin

principal

Here is a small video on quantum number

The principal quantum number, symbolized as n, is the first of a set of quantum numbers of anatomic orbital . The principal quantum number can only have positive integer values. As n increases, the orbital becomes larger and the electron spends more time farther from the nucleus. As n increases, the electron is also at a higher potential energy and is therefore less tightly bound to the nucleus.

PRINCIPAL QUANTUM NUMBER

This was introduced by Neils bohr

Here is the small video based on principal quantum number

This video is about principal quantum number

AZIMUTHAL QUANTUM NUMBER(OR)

ANGULAR QUANTUM NUMBER

The azimuthal quantum number is a quantum number for an atomic orbital that determines its orbital angular momentum and describes the shape of the orbital. The azimuthal quantum number is the second of a set of quantum numbers which describe the unique quantum state of an electron.It is also known as the orbital angular momentum quantum number, orbital quantum number or second quantum number, and is symbolized as ℓ

It was discovered be somerfeld

This video is about azimuthal quantum number

MAGNETIC QUANTUM NUMBER

The magnetic quantum number is the third of a set of quantum numbers which describe the unique quantum state of an electron and is designated by the letter m. The magnetic quantum number denotes the energy levels available within a subshell.

It was discovered by Lande

This is an video about Magnetic quantum number

Spin quantum number

The spin quantum number is a quantum number that parameterizes the intrinsic angular momentum of a given particle. The spin quantum number is the fourth of a set of quantum numbers , which describe the unique quantum state of an electron and is designated by the letter s.

It was discovered by Uhlenbeck and Goundsmith

This is a video about spin quantum number

This ppt was created by

*Dhanrajand

*Mohit

FromIX-”A”