What a radioisotope is and why they have unstable nuclei. Elements in which all of the isotopes are radioactive.
Explains isotope stability and different kinds of nuclear decay.
Examines carbon isotopes and how carbon-14 can be used to determine how long ago an organism died.
Reviews the definition of radioisotope, why radioisotopes have unstable nuclei, and which elements have only radioactive isotopes.
Come up with questions about a topic and learn new vocabulary words to determine answers using an Ask, Answer, Learn table.
Find out how smoke detectors work and the role played by radioisotopes.
Discover how radioisotopes are used to make PET scans that show how structures of the body are working.
Find out how potassium iodide can be used to protect the thyroid gland from radioactive iodine in cases of nuclear accidents or terrorism.