
Concept explainers
(a)
Interpretation: Whether it is true that a radioactive nuclide which decays from
Concept Introduction: The time required for the concentration of a reactant to decrease to half of its original value is called half-life of a reaction.
(b)
Interpretation: Whether it is true that nuclides with large
Concept Introduction: The decay of a radioactive nucleus produces the alpha particles, due to unstable condition of the nucleus.
(c)
Interpretation: Whether it is true that nuclides require a greater proton-to-neutron ratio for stability, as the value of
Concept Introduction: In naturally occurring and stable nuclei the neutron-to-proton ratio increases with the increase in atomic number.
(d)
Interpretation: Whether it is true that “light” nuclides having twice as many neutrons as protons, are expected to be stable or not is to be determined.
Concept Introduction: An atom which is having a specific number of neutrons and protons in its nucleus is called a nuclide.

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Chapter 20 Solutions
Chemical Principles
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