Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 17 - Radioactivity and Nuclear Chemistry - Exercises - Questions - Page 636: 5

Answer

X: chemical symbol, the identity of the element A: mass of an atom of the element. The sum of the protons and neutrons. Z: atomic number, the number of protons.

Work Step by Step

X: chemical symbol, the identity of the element A: mass of an atom of the element. The sum of the protons and neutrons. Z: atomic number, the number of protons.
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