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Question
An isotope of uranium is 92Y238, i.e., it has mass number 235 and atomic number 92.
Mention the relationship between 92U235 and 92U238.
Solution
92U238 and 92U235 the difference is in their atomic masses but their atomic number is the same i.e., both have the same atomic number 92. The elements, that differ in their atomic masses but have the same atomic number are called isotopes, hence 92U238 and 92U235 are isotopes of the element uranium.
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