18
QuizMultiple Choice
Unit Test — Unit test
Question 18 • TX-Chemistry B
The alpha decay of a radioactive nuclide (X) emits a He-4 nucleus and produces an isotope of . What is X?
Answer
A
Superscript 235 subscript 91 upper P a.
B
Superscript 235 subscript 93 upper N p.
C
Superscript 236 subscript 92 upper U.
D
Superscript 239 subscript 94 upper P u.