MCQ
After losing two electrons, an atom of Helium becomes equivalent to:
- A$\alpha$ -particle
- B$\beta$ -particle
- C$\gamma$ -particle
- DDeuterium nucleus
✓
Answer
- $\alpha$ -particle
Explanation:
$^4_2$He→$^4_2$He+2+2e−
$^4_2$He+2 is alpha particle. Because it has charge equal to +2e and mass is four times the mass of one proton.
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