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13 questions from this quiz
Atoms of same element with different masses
Same number of protons
Number of neutrons
They are equal
Number of neutrons and protons
Proton number
−N-N−N
+N+N+N
One or two
Process where unstable nucleus emits radiation
Totally random process
Becquerel (Bq); 111 decay per second
Geiger-Muller tube
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