Electronic Structure of Matter PDF

Summary

This document discusses the electronic structure of matter, covering Bohr's atomic model and the quantum mechanical model. It details quantum numbers, the Aufbau Principle, Pauli Exclusion Principle, and Hund's Rule.

Full Transcript

BOHR’S ATOMIC MODEL NEILS BOHR Planetary Model of an Atom Electrons orbit around the nucleus in the same manner the Earth orbits. Ocuppy distinct energy levels. PLANETARY MODEL OF AN ATOM END OF LESSON Do you have any questions? THE QUANTUM MECHANICAL MODEL OF...

BOHR’S ATOMIC MODEL NEILS BOHR Planetary Model of an Atom Electrons orbit around the nucleus in the same manner the Earth orbits. Ocuppy distinct energy levels. PLANETARY MODEL OF AN ATOM END OF LESSON Do you have any questions? THE QUANTUM MECHANICAL MODEL OF AN ATOM QUANTUM NUMBERS The set of numbers used to describe the position and energy of the electron in an atom. There are four quantum numbers, namely, principal, angular, magnetic and spin quantum numbers. PRINCIPAL MODEL OF AN ATOM ANGULAR MODEL OF AN ATOM MAGNETIC QUANTUM NUMBER MAGNETIC QUANTUM NUMBER SPIN QUANTUM NUMBER ORBITAL DIAGRAMS 01 Aufbau Principle 02 Pauli Exclusion Principle 03 Hund’s Rule 01 Aufbau Principle Used to understand the location of electrons in an atom and their corresponding energy levels. 02 Pauli Exclusion Principle No two electrons in the same atom can have identical values for all four of their quantum numbers. 03 Hund’s Rule Maximum multiplicity is a rule based on observation of atomic spectra, which is used to predict the ground state of an atom or molecule with one or more open electronic shells. END OF LESSON Do you have any questions?

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