Determine the product of the reaction:
`._3^7Li +._2^4He rarr ? +n`
What is the Q value of the reaction?

Explanation

To solve the reaction \( _3^7Li + _2^4He \rightarrow ? + n \) and determine the Q value, we can follow these steps:

### Step 1: Identify the Reactants
The reactants in the reaction are:
- Lithium-7 (\( _3^7Li \))
- Helium-4 (\( _2^4He \))

### Step 2: Determine the Mass Numbers and Atomic Numbers
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