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Science Bowl Question

📅 NSB 2013🎓 HS🔄 Round 14#️⃣ Q17❓ TOSS-UP📝 Multiple Choice

What is the change in the parent atom atomic number upon alpha particle emission?

W) It decreases by 2
X) It decreases by 1
Y) It increases by 1
Z) It increases by 2
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