Kamis, 18 November 2010

Radioactive decay Nuclear Decay

Alpha decay is a type of radioactive decay in which anatomic nucleus emits an alpha particle, and thereby transforms (or 'decays') into an atom with a mass number 4 less and atomic number 2 less. For example:
23892U → 23490Th 42He2+ [1]

Or:
23892U → 23490Th 42He
as some believe electrons are gained from the environment. 

Periodic Table could have Images

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