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

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

a neutron-to-proton ratio of 1:2 in a large nucleus

any isotope of the element uranium, which has atomic number 92

a nucleus that contains 90 protons and 100 neutrons

Explanation:

Basically the the larger a nucleus gets the more unstable it becomes. that's why all elements 87 and above are radioactive

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.

gas

explanation:

smoke is the matter of a gas