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Stage 1
Answer 4 questions correctly in a row.
Argon-41 emits a particle as it decays into potassium-41. This reaction is represented by the nuclear equation below.
41
18
Ar
?
+0
0
41
19
K
Identify the missing particle in this nuclear equation.
0
−1
p
1
0
1
0
p
0
−1
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