Elements Of Physical Chemistry
Elements Of Physical Chemistry
7th Edition
ISBN: 9780198796701
Author: ATKINS, P. W. (peter William), De Paula, Julio
Publisher: Oxford University Press
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Chapter 8, Problem 8B.3ST
Interpretation Introduction

Interpretation:

The ground state electronic configuration of magnesium atom has to be identified.

Concept-Introduction:

Aufbau principle:

  • Electrons first occupy orbitals with lower energy than higher energy.
  • An orbital can be occupied only by two electrons having opposite spins.
  • Each electron fills each orbital till it is half filled.  Greater the number of parallel spins of electrons more stable the orbital.  This is known as Hund’s rule.
  • The order of electrons filling in an atom is given as

Elements Of Physical Chemistry, Chapter 8, Problem 8B.3ST

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