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Calculate the number of neutrons present...

Calculate the number of neutrons present in the nucleus of an element X which is represented as `""_(15)^(31)X`.

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To calculate the number of neutrons present in the nucleus of the element X represented as `""_(15)^(31)X`, follow these steps: ### Step 1: Identify the Mass Number and Atomic Number The notation `""_(15)^(31)X` indicates: - The atomic number (Z) is 15 (the number written at the bottom). - The mass number (A) is 31 (the number written at the top). ### Step 2: Understand the Relationship Between Mass Number, Atomic Number, Protons, and Neutrons ...
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