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Which nuclear emission has the least penetrating power and the greatest ionizing ability?

January 2019 NY Regents Chemistry Exam


50 Which nuclear emission has the least penetrating power and the greatest ionizing ability? (1) alpha particle

(2) beta particle (3) gamma ray

(4) positron


Solution: Alpha particle has the least penetrating power and the greatest ionizing ability while gamma ray has the greatest penetrating power.

Answer: 1


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