Answer
9.8990 x 10^9 helium atoms
Work Step by Step
1 pm = 1 x 10^-12 m; therefore, 1.0102 pm = 1.0102 x 10^-12 m
1 cm = 1 x 10^-2 m
# of helium atoms = (1 x 10^-2 m)/(1.0102 x 10^-12 m) = 9.8990 x 10^9 helium atoms
Chemistry (4th Edition)
by Burdge, Julia
Published by
McGraw-Hill Publishing Company
ISBN 10:
0078021529
ISBN 13:
978-0-07802-152-7
Chapter 2 - Questions and Problems - Page 76: 2.14
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