Chemistry: The Molecular Nature of Matter and Change 7th Edition

Published by McGraw-Hill Education
ISBN 10: 007351117X
ISBN 13: 978-0-07351-117-7

Chapter 8 - Problems: 8.8

Answer

See explanation below.

Work Step by Step

For a given level (n), the sublevels in H have the same energy, whereas in many-electron, species, the sublevels are staggered in energy. The staggering is due to the higher likelihood of core penetration (slightly less shielding by core electrons) for s compared to p orbitals. For H or any one-electron species (like Be3+), there is no shielding, so all the sublevels have the same pattern as in H.
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