Name three radioactive elements name three uses of radiation deuterium is an isotope of hydrogen. what is meant by isotope? pair the following types of radioactive particle: light particle, helium nucleus, electron alpha, beta, gamma describe with an example what is meant by "half-life"

Technetium (TC)- Transition metal.Promethium (Pm)- Rare earth metal.Polonium (Po)- Metalliod.


Radioactivity tracers,fission products,controls fission reactions

Isotopes are variants of a particular chemical element which differ in neutron number. All isotopes of a given element have the same number of protons in each atom.


For example, the half-life of a radioactive substance is the amount of time it takes for half of its atoms to decay, and the half-life of a drug is the amount of time it takes before half of the active elements are either eliminated or broken down by the body.

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