An ion `M^(3+)` contains 10 electrons and 14 neutrons. What are the atomic number and mass number of the element M? Name the element.

Explanation

To solve the problem, we need to determine the atomic number and mass number of the element M given that it is in a \( M^{3+} \) ion form, contains 10 electrons, and has 14 neutrons.

### Step 1: Determine the Atomic Number
The atomic number (Z) of an element is defined as the number of protons in the nucleus of an atom. In a neutral atom, the number of protons equals the number of electrons. However, since we have a \( M^{3+} \) ion, it has lost 3 electrons.

Given that the ion \( M^{3+} \) has 10 electrons, we can find the number of protons (which is the atomic number) as follows:

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