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
ОООО
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