Atoms of the same element that have different
numbers of neutrons, which affects the stability of the nucleus. carbon
a radioactive isotope found in all living things which scientists
late the age of a specimen radioactive isotopes doctors diagnose
disease, and locate and treat certain types of cancer.

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what is the question?

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.