An ion with mass number `37` possesses one unit of negative charge. If the ion contains `11.1%` more neutrons than the electrons, find symbol of the ion.

Explanation

To solve the problem step by step, we will follow the information given in the question and apply the relevant concepts of atomic structure.

### Step 1: Understand the given information
We know that:
- The mass number (A) of the ion is 37.
- The ion has a negative charge of -1, which means it has one more electron than protons.
- The ion contains 11.1% more neutrons than electrons.

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