Radioactivity - created from Mind Map

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Types of radioactivity

Alpha

2 neutrons and 2 protons

helium nucleus

most massive of the radiations

is the slowest of the radiations

has the biggest charge of 2+

strongly ionises (why it is the slowest)

Beta

it is an electron

bigger than gamma but smaller than alpha

faster than alpha but slower that gamma

has a charge of 1-

Gamma

electromagnetic wave

not a particle so no mass

fastest

travels at the speed of light

has zero charge