The binding energy per nucleon of deuterium and helium atom is `1.1 MeV` and `7.0 MeV`. If two deuterium nuclei fuse to form helium atom, the energy released is.

Explanation

To solve the problem of energy released when two deuterium nuclei fuse to form a helium nucleus, we can follow these steps:

### Step 1: Understand the Binding Energy
- The binding energy per nucleon for deuterium is given as \(1.1 \, \text{MeV}\).
- The binding energy per nucleon for helium is given as \(7.0 \, \text{MeV}\).

### Step 2: Calculate the Total Binding Energy of Two Deuterium Nuclei
- Each deuterium nucleus has a mass number of 2 (since it contains one proton and one neutron).
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