Assertion : `""^(22)_(11)Na` emits a positron giving `""^(22)_(12)Mg`
Reason : In `beta^+` emission neutron is transformed into proton.

Options

A. If the both assertion and reason are true and the reason is the correct explanation of the assertion
B. If both assertion and reason are true and the reason is not the correct explanation of the assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false statements.

Explanation

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Analyze the Assertion
The assertion states that `^(22)_(11)Na` emits a positron to form `^(22)_(12)Mg`.

- In beta plus (β+) decay, a proton in the nucleus is converted into a neutron, and a positron (the antiparticle of an electron) is emitted.
- The reaction can be represented as:
\[ ^{22}_{11}Na \rightarrow ^{22}_{12}Mg + \beta^+ \]
- Here, the atomic number decreases by 1 (from 11 to 12), which is incorrect for the assertion since magnesium has an atomic number of 12, not 11. Therefore, the assertion is **false**.

### Step 2: Analyze the Reason
The reason states that in beta plus emission, a neutron is transformed into a proton.

- This statement is incorrect. In beta plus decay, it is actually a proton that is transformed into a neutron, not the other way around.
- The correct transformation in beta plus decay is:
\[ p \rightarrow n + \beta^+ + \nu_e \]
- Therefore, the reason is also **false**.

### Conclusion
Both the assertion and the reason are false.

### Final Answer
- Assertion: False
- Reason: False

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