Read HUND'S RULE, PAULI'S PRINCIPLE Name¬¬¬¬__________________________ text version

HUND'S RULE, PAULI'S PRINCIPLE AND THE AUFBAU PRINCIPLE

Worksheet 1

Name__________________________

Hund's Rule: The most stable arrangement of electrons in a sublevel is the one with the greatest number of parallel spins. The result is that each orbital will have one electron spinning in a common direction before two electrons will fill the same orbital. Pauli's Exclusion Principle The exclusion principle states that only 2 electrons can occupy a given orbital. In full orbitals (orbitals containing 2 electrons of opposite spin) one electron must be spin up and the other spin down. The electrons are said to be paired. The Aufbau Principle: It is possible for us to designate the electronic configuration of any atom using a simple procedure. Rules for Filling Orbitals: 1. Lower-energy orbitals fill first. 2. An orbital can hold only 2 electrons with opposite spins (Pauli's Exclusion Principle). 3. If 2 or more degenerate orbitals available, 1 electron goes in each until all are half-full (Hund's Rule).

Information

HUND'S RULE, PAULI'S PRINCIPLE Name¬¬¬¬__________________________

1 pages

Report File (DMCA)

Our content is added by our users. We aim to remove reported files within 1 working day. Please use this link to notify us:

Report this file as copyright or inappropriate

127352


You might also be interested in

BETA
untitled
Microsoft Word - INORGANIC CHEMISTRY Hons New Syllabus.doc
Microsoft PowerPoint - Chapter 5 Electrons in Atoms
INTRODUCTION TO QUANTUM MECHANICS