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Answers (7)
D is wrong it is A Sorry for the mistake guys 100% A:)
C is the correct answer 100%
The correct answer is A,D 100% A,D :)
The correct answer is D because a Rn has 37 electrons and 37 protons. 100% THE ANSWER IS D :)
The answer is D because a Exothermic release heat and a Endothermic absorb the heat 100% D IS THE RIGHT ANSWER:)
A is the right answer 100%
It is C 100%
