Spontaneous decay of certain elements in nature occurs because these elements have disproportionate ratios of neutrons to protons. Thus, option B is correct.
What is radioactive decay?
Radio active decay is a process in which unstable nuclei will convert into stable nuclei by the emission of some particles in the form of radiations.
Unstable nature of nuclei is due to the presence of inappropriate ratio of neutrons to protons inside the nucleus. So these type of molecules shows spontaneous decay to attain stability.
Hence, the reason is the disproportionate ratios of neutrons to protons. Thus, option B is correct.
To know more about radioactive substances, visit the below link:
https://brainly.com/question/15404889
#SPJ2
