Interpretation : The isotopes that have stable nuclei are to be determined.
Concept Introduction : Neutron-to-proton ratios of at least 1 and even quantities of protons and neutrons are typical characteristics of stable nuclei. It is common for particularly stable nuclei to have protons and neutrons in magic numbers.
Answer to Problem 73A
The isotopes that have stable nuclei is neon.
Explanation of Solution
The isotopes have stable nuclei if the ratio of the number of neutrons to the number of protons is equal to one.
The stable isotope is formed for the element with an
In such cases, neon has stable isotope nuclei.
The ratio of the number of neutrons to the number of protons in neodymium and zirconium is greater than one, so it does not form stable isotope nuclei.
It can also be interpreted from the graph where there is greater deviation between the two lines.
The two lines are similar only till atomic number 20.
Chapter 25 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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