Carbon dating and tracking.
The explanation is the effect of ionizing radiation on tissues and materials.Three uses are:- sterilizing of instruments and parapharmaceutic items- diagnostic with radioactive isotopes (scintigraphy)- treatment of cancers with radioactive isotopes
Some imaging uses radioactive isotopes to see various parts of the body.
Not all isotopes are radioactive; the radioactive isotopes are unstable and emit radiations.
2
There are a lot more than 2 radio active isotopes... To answer this question a naturally or created radioactive element needs to be mentioned.
Both isotopes and radioactive isotopes are pretty much the same but radioactive isotopes are better because it can be used to make medicine.
Radioactive isotopes are not stable.
Sodium has no radioactive isotopes.
All the uranium isotopes are radioactive.
All radioactive isotopes will disintegrate.
All isotopes of francium are radioactive.
Radioactive isotopes have many uses:- sources of energy- tracers- treatment of cancers- sources of radiation- components of instruments- nuclear fuels- nuclear bombsand many others