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« previous 5 of 14 | next » The Uranium Decay Series Part C 1 Pa undergoes beta decay. What is the mass number of the resulting element? 91 Express your answer numerically as an integer Learning Goal To balance nuclear decay reactions in the uranium- 238 decay series. A 234 Unstable nuclei undergo a spontaneous emission of particles, electromagnetic radiation, or both When a radioactive nucleus breaks apart, the products may also be unstable and will then undergo radioactive decay themselves. This decay process continues until a stable element is finally formed, and is called a decay series. The uranium- 238 decay series is shown here. You will need to fill in the missing atomic numbers and mass numbers. Submit Hints My Answers Give Up Review Part Correct Part D 92 undergoes alpha decay. What is the atomic number of the resulting element. a Express your answer numerically as an integer Z 238 Submit Hints My Answers Give Up Review Part Incorrect; Try Again; 2 attempts remaining Part E This question will be shown after you complete previous question(s).

Explanation / Answer

part C    234 correct only

part D    90 is the resulting element atomic number

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