
Concept explainers
Interpretation: Isotopes needs to be explained.
Concept introduction: In a nuclear reaction, unstable nuclide disintegrates into stable nuclide with emission of various radiations spontaneously. It is called radioactivity of nucleus. Emission of rays like alpha, beta and gamma rays occur in the process which changes the identity of nucleus.
During a nuclear change, an element undergoes change in its

Answer to Problem 4A
Explanation of Solution
Isotopes are identified as elements those have same atomic numbers and different mass numbers. They only differ in count of neutron particles. Such as
Isotopes are identified as elements those have same atomic numbers and different mass numbers. Such as
Chapter 19 Solutions
World of Chemistry
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