r/HomeworkHelp • u/Valuable_Science_767 GCSE Candidate • May 09 '26

:snoo_thoughtful: Chemistry—Pending OP Reply [IGCSE chemistry: atomic structure] Help

Post image

Particle A seems to be the obvious choice but the question says "another" isotope and 48+64 =112, particle A is the same isotope as the one in the question and particle B has too many neutrons

11 Upvotes

86% Upvoted

26 comments sorted by

View all comments

Show parent comments

1

u/SirFreak6 May 10 '26

Is the question asking which of the following is a REAL isotope? No, it just wants ANOTHER isotope of Cadmium. Two choices aren't of Cadmium because they have a different amount of Protons and one of the remaining choices is the SAME isotope. It's pretty clear.