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NEETChemistryStructure of Atom

An element with mass number 81 contains 31.7% more neutrons as compared to protons. What is the atomic symbol?

Options

  1. A81 Br 29
  2. B42 Br 81
  3. C81 Br 39
  4. D81 Br 35

Correct answer

D. 81 Br 35

Step-by-step solution

Correct Option is : (D) 81 Br 35

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