# Types of Radiation & Meaning

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• Radition is an actom’s way of getting rid of its excess energy.
• Particulate Radiation comes mainly from radio active substances such as radium, uranium and other heavy elements as they break down.
• Radiation is Measured in curies and becquerels.
• Bacteria can stand a radiation dose 10,000 times greater than the dose that would kill a human being.
• The natural radioactivity of a brazil nut is about six becuquerels (0.000000014 curies), which means six atoms in the nut break up every second.