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The following elements meet these criteria:
Europium (Eu)
Californium (Cf)
Americium (Am)
Germanium (Ge)
Chemistry: The Molecular Science (5th Edition)
by Moore, John W.; Stanitski, Conrad L.
Published by
Cengage Learning
ISBN 10:
1285199049
ISBN 13:
978-1-28519-904-7
Chapter 1 - The Nature of Chemistry - Exercise 1.9 - Elements - Page 32: d
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