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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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When  Ac undergoes positron emission, what is the atomic number of the element that is produced?
A) 87
B) 90
C) 88
D) 91
E) none of the above

Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
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mel!811mel!811
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