Chemistry: Molecular Approach (4th Edition)

Published by Pearson
ISBN 10: 0134112830
ISBN 13: 978-0-13411-283-1

Chapter 8 - Exercises - Page 379: 117

Answer

Density increases when moving to the right.

Work Step by Step

Despite electrons being added successively across the period, they are added to the 3d sub-shell. This sub shell is not considered part of the outermost principal energy level. Due to this, the atomic radius does not increase a great deal when moving across the periodic table of elements; however, mass does.
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