Radiation Flashcards

1
Q

The radiation that surrounds us all the time is called

A

Background radiation

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2
Q

There are 3 main types of radiation alpha beta and what

A

Gamma

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3
Q

Is it possibly to es

A

Thrhccndj d. Did

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4
Q

Beta radiation is ……………….…………… by magnetic and electric fields

A

Deflected

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5
Q

Alpha and beta particles have oppersite

A

Charges

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6
Q

Beta radiation is made of

A

Electrons

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7
Q

What’s the charge on a alpha particle

A

2

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8
Q

All types of radiation can

A

Harm cells

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9
Q

Can you predict when an atom will decay

A

No

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10
Q

Who invented the plum pudding model

A

J j Thompson

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11
Q

J J Thomson said that atoms were little circles with tiny things stuck inside them like a plum pudding what are the things

A

Electrons

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12
Q

Rutherford and marsden did what

A

Fired alpha particles into gold foil expecting them to be slightly deflected but they went straight through or came back at them

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13
Q

Rutherford and Marsden discovered that most of the

A

Mass was centred in a nucleus in the centre of the atom

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14
Q

Rutherford and marsden also showed that an atom was mostly

A

Empty space

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15
Q

An atom with the same number of protons but a different number of neutrons are called

A

Isotopes

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16
Q

As a result of being isotopes they have the same atomic number but a different

A

Mass number

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17
Q

Mass number is the number of

A

Protons and neutrons

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18
Q

Can you make something decay

A

No

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19
Q

Alpha beta and gamma are all what

A

Types of ionising radiation

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20
Q

How does The sun contribute to radiation

A

Cosmic waves

21
Q

A small proportion of radiation comes from

A

Hospitals, nuclear power station fallouts and nuclear bombs

22
Q

Radon gas is a huge

A

Background radiation source

23
Q

What percentage of backround radiation comes from the nuclear industry

24
Q

Radon gas produces what percentage of radiation

25
An alpha particle is the same as a
Helium nuclei
26
Alpha particles has
2 neutrons and 2 protons
27
Alpha particles have a mass of
4
28
Alpha has a charge of
+2
29
Alpha particles are big and
Heavy
30
Alpha particles can penetrate
Nothing they barely penetrate air
31
Because of there size alpha particles are
Very ionising they bash into a lot of atoms knocking electrons of them
32
Beta particles are in between
Alpha and gamma particles in there properties
33
Beta particles move .:. And are .:.
Quite fast and are small
34
Beta particles have a long range in
Air
35
Beta particles are ......... ionising
Quite ionising
36
For every beta particle released a
Neutron turns into a proton in the nucleus
37
A beta particle has what mass and charge
No mass and a charge of -1
38
When an atom decays it
Gives out gamma beta alpha radiation
39
Beta particles are
Electrons produced in the nucleus
40
Gamma radiation is a high
energy electromagnetic wave
41
Gamma radiation has no
Mass
42
Alpha and gamma radiation are both stopped
Before a meter of air is traveled
43
Gamma radiation goes .,...,.,.:;;., in air
Several meters
44
Alpha radiation is stopped by
Paper
45
Beta radiation is stopped by
Thin aluminium
46
Gamma radiation is stopped by
Many centimetres of lead
47
Gamma radiation is how ionising
Weakly ionising
48
Beta particles are how ionising
Quite strong
49
Alpha particles are how ionising
Very strongly ionising