## Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall

# Chapter 8 - Sections 8.1-8.9 - Exercises - Problems by Topic: 59c

+6

#### Work Step by Step

$O:[He]2s^{2}2p^{4}$ The atomic number for helium is 2, which means there are $S=2$ electrons. $Z_{eff}$$=$$Z-S$$=8-2$$=+6$

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