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Science > Radioactive Decay > Flashcards

Radioactive Decay Flashcards

1
Q

Where was Marie Curie born?

A
  • Poland
  • 1867
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2
Q

Where did Marie Curie work

A

Paris

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3
Q

1903:

A

Nobel Prize in Physics

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4
Q

1911

A

Nobel Prize in Chemistry

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5
Q

Curie identified…

A
  • Polonium
  • Radium
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6
Q

Nuclear radiation occurs…

A

when the nucleus of the atom is unstable

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7
Q

Nuclear radiation occurs when the
the nucleus of the atom is unstable

A
  • Something is emitted from the nucleus
  • The nucleus has decayed (broken down)
  • It is a random process
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8
Q

Which form of nuclear radiation is described
here: 2 protons and 2 neutrons

A

Alpha

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9
Q

Which form of nuclear radiation is described
here: like a proton, but with no charge

A

Neutron

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10
Q

Which form of nuclear radiation is described
here: a high-energy electromagnetic wave

A

Gamma

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11
Q

Which form of nuclear radiation is described
here: a high-energy electron

A

Beta

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12
Q

Which form of nuclear radiation is
made of the largest particle?

A

Alpha

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13
Q

There are 4 types of nuclear radiation:

A
  • Alpha
  • Beta
  • Gamma
  • Neutron
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14
Q

Types of radiation

A
  • Alpha
  • Beta
  • Gamma
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15
Q

What can Alpha go through and not?

A

Paper: Yes
Plastic: No
Concrete/Steel/Lead: No

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16
Q

What can Beta go through and not?

A

Paper: Yes
Plastic: Yes
Concrete/Steel/Lead: No

17
Q

What can Gamma go through?

A

Paper: Yes
Plastic: Yes
Concrete/Steel/Lead: no

18
Q

Which form or forms of nuclear radiation are stopped by a sheet of paper?

A

Alpha

19
Q

Which form or forms of nuclear radiation are stopped by a few mm of aluminium?

A
  • Alpha
  • Beta
20
Q

Which form or forms of nuclear radiation will penetrate deep into,
and be stopped by thick lead?

A

Gamma

21
Q

Thick concrete will protect against
which form or forms of nuclear
radiation?

A
  • Alpha
  • Beta
  • Gamma
22
Q

Alpha

A

2 protons and 2 neutrons

23
Q

Beta

A

High-speed electron

24
Q

Gamma

A

High-energy electromagnetic wave

25
Q

Neutron

A

Neutrally charged particle

26
Q

Alpha

A

Just a few centimetres (cm)

27
Q

Beta

A

A few meters, depending on it’s speed

28
Q

Gamma

A

Tens of thousands of meters

29
Q

Radioactive Decay

A
  • Some isotopes have an unstable nucleus
  • To become stable, the nucleus gives out radiation

Science (20 decks)

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