QUICK CHECK
Which would result in radioactive decay? Check all that apply.
a neutron-to-proton ratio of 1:1 in a small nucleus
a neutron-to-proton ratio of 1:2 in a large nucleus
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a nucleus that contains 90 protons and 100 neutrons
a nucleus that contains 8 protons and 8 neutrons
any isotope of the element uranium, which has atomic number 92
any isotope of the element potassium, which has atomic number 19
DONE

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.