Physical Science Radiation. Nuclear Chemistry Notation.

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Presentation transcript:

Physical Science Radiation

Nuclear Chemistry Notation

What is Radiation? A small particle or energy wave traveling through the air Why is it Bad? Radiation can cause chemical reactions that would not normally occur to occur in living systems. Sometimes these reactions cause health problems. An example is cancer caused by radiation.

Alpha decay loss of a Helium (He) From the Nucleus of an Atom He 2 4

Beta decay loss of an Electron from the nucleus Now wait just one minute…….. That doesn’t make any sense!!

Gamma decay no mass or charge change – but usually accompanies an alpha or beta decay.

Isotope Dating How do you tell how old something is? Image from yahoo images