Answer
$Li:[He]2s^{1}$
Therefore, there is one 2s electron.
Work Step by Step
Write the electron configuration for lithium using noble gas notation. Then determine the number of electrons for the specified subshell.
Chemistry: A Molecular Approach (3rd Edition)
by Tro, Nivaldo J.
Published by
Prentice Hall
ISBN 10:
0321809246
ISBN 13:
978-0-32180-924-7
Chapter 8 - Sections 8.1-8.9 - Exercises - Problems by Topic - Page 375: 47a
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