Types of radiation Flashcards by Leander Pedzeni

Q

What are the 4 types of radiation?

A

Alpha
Beta ( - )
Beta ( + )
Gamma

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Q

What are alpha particles blocked by?

A

Paper

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Q

What are beta particles blocked by?

A

Aluminium

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Q

What are gamma particles blocked by?

A

Lead

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Q

When an atom is unstable what will it throw out?

A

Alpha particle

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Q

How many protons and neutrons does an alpha particle have?

A

2 protons

2 neutrons

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Q

What is the alpha symbol?

A

α

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Q

What is the mass of alpha particle?

A

4

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Q

What is the charge of an alpha particle?

A

+2

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Q

How ionising is an alpha particle?

A

VERY

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Q

When is alpha article dangerous?

A

When consumed

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Q

In an electric field, it will be what?

A

Negative

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Q

Where is alpha commonly used?

A

Smoke alarms

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Q

What is the beta symbol?

A

β

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Q

What does the structure of a beta symbol consist of?

A

An electron

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Q

What is the mass of a beta particle?

A

1/1836

Q

What is the charge of a beta particle?

A

-1

Q

How ionising is the beta particle?

A

Moderate

Q

When is a beta particle dangerous?

A

Inside or outside the body

Q

In an electric field, what is it?

A

Positive

Q

When is beta particles commonly used?

A

When measuring aluminium

Q

What is the gamma symbol?

A

δ

Q

What is the structure of a gamma particle?

A

A light wave

Q

What is the mass of a gamma particle?

A

0

What is the charge of a gamma particle?

0

How ionising is a gamma particle?

Weak

When is a gamma particle dangerous?

Inside ad outside the body

What are gamma particles usually used for?

Treating cancer

What is a gamma particle?

A burst of energy