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## PowerPoint Slideshow about ' Alpha beta and gamma' - mason-weber

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What is alpha (α) radiation?

2 neutrons, 2 protons

Description

Note:– An alpha particle is the same as a helium nucleus

+2

Electric charge

4

Relative atomic mass

Stopped by paper or a few centimetres of air

Penetrating power

Strongly ionizing

Ionizing effect

Effect of magnetic/ electric field

Weakly deflected

What is beta (β) radiation?

High energy electron

Description

-1

Electric charge

1/1860

Relative atomic mass

Stopped by a few millimetres of aluminium

Penetrating power

Weakly ionizing

Ionizing effect

Effect of magnetic/ electric field

Strongly deflected

Gamma () radiation

High energy electromagnetic radiation

Description

0

Electric charge

0

Relative atomic mass

Stopped by several centimetres of lead or several metres of concrete

Penetrating power

Very weakly ionizing

Ionizing effect

Effect of magnetic/ electric field

Not deflected

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