Question

Please answer the question below asap:Iodine is used to detect and treat thyroid cancer. When iodine-131 gives off a beta particle, what is the new isotope called? A- tellurium-131B- xenon-131C-xenon-135D-antimony-127

Answer 1

When Iodine-131 decays, it goes through a process called Beta Decay, which is a type of radioactive decay where we have 1 neutron releasing its negative charge and becoming a proton, increasing the atomic number of the atom, but not changing the atomic mass, therefore the beta minus decay of Iodine-131 will be:

I-131 -> Xe-131 + antineutrino + electron

The atomic number of Iodine changed into Xenon and the reaction released one electron and one antineutrino particle

Letter B