Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 2 - Sections 2.1-2.9 - Exercises - Review Questions - Page 79: 18


The isotopes can be denoted by 2 different notations: 1. First notation : $^{A}_{Z}X$ Here, X is the chemical symbol, A is the mass number, and Z is the atomic number. 2. Second notation : $X$-$A$ This is is the chemical symbol (or chemical name X) followed by a dash and the mass number of the isotope.

Work Step by Step

Examples are denoted using the neon isotopes: 1. First notation : $^{20}_{10}Ne$ , $^{21}_{10}Ne$, $^{22}_{10}Ne$ 2. Second notation: $Ne$-20, $Ne$-21, $Ne$-22 neon-20, neon-21, neon-22
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