Answer
Average atomic mass of neon = (19.992 x 0.9048) + (20.994 x 0.0027) + (21.991 x 0.0925)
= 18.09 + 0.057 + 2.03 = 20.177
Work Step by Step
As given in answer
General Chemistry (4th Edition)
by McQuarrie, Donald A.
Published by
University Science Books
ISBN 10:
1891389602
ISBN 13:
978-1-89138-960-3
Chapter 2 Atoms and Molecules - Problems - Page 74: 49
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