TASC Physical Sciences Level 3 Practice Questions - TASC Physical Sciences Level 3 (Course Code PSC315118) Exam

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Radium-226 (\(^{226}_{88}\text{Ra}\)) undergoes alpha decay to form Radon (\(\text{Rn}\)). What are the mass number and atomic number of the resulting Radon isotope?

Mass number = 222, Atomic number = 86 Mass number = 224, Atomic number = 86 Mass number = 222, Atomic number = 87 Mass number = 226, Atomic number = 86

Correct Answer:

Mass number = 222, Atomic number = 86

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