A deutron strikes `""_6O^(16)` nucleus with the subsequent emission of an `alpha`-particle. Find the atomic number, mass number and chemical name of the element so produced.

Explanation

To solve the problem step by step, we will analyze the nuclear reaction involving a deuteron and an oxygen-16 nucleus, which results in the emission of an alpha particle.

### Step 1: Write the nuclear reaction
The deuteron is represented as \( _{1}^{2}H \) (which is the same as \( D \)), and the oxygen-16 nucleus is represented as \( _{8}^{16}O \). The alpha particle is represented as \( _{2}^{4}He \).

The reaction can be written as:
\[
_{1}^{2}H + _{8}^{16}O \rightarrow X + _{2}^{4}He
...