Robyn Stevenson
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Quiz on Physics: atomic structure and radioactivity , created by Robyn Stevenson on 21/03/2018.

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Robyn Stevenson
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Physics: atomic structure and radioactivity

Physics: atomic structure and radioactivity

Question 1 of 22

1

The radius of an atom is 1 x 10(-10) and the nucleus is about 1/10000 of this

Select one of the following:

  • True
  • False

Explanation

Question 2 of 22

1

Electrons can change energy levels when an atom electromagnetic radiation so the electrons moves from a energy level to a on. If the atom electromagnetic radiation so the electron returns to its energy level

Drag and drop to complete the text.

    higher
    original
    lower
    absorbs
    emits

Explanation

Question 3 of 22

1

What does the mass number represent?

Select one of the following:

  • Protons and Neutrons

  • Protons and Electrons

  • Neutrons

  • Electrons

  • Protons

Explanation

Question 4 of 22

1

Fill the blank space to complete the text.

Isotopes are the same element but with a different number of

Explanation

Question 5 of 22

1

Ancient Greeks->1897->Plum pudding model->Alpha scattering experiment->Nuclear model->Niels Bohr->James Chadwick

Select one of the following:

  • True
  • False

Explanation

Question 6 of 22

1

Some isotopes have an nucleus so to become the nucleus gives out - radioactive decay ( a process)

Drag and drop to complete the text.

    unstable
    stable
    radiation
    random

Explanation

Question 7 of 22

1

The rate at which a source of nuclei . Which is measured using a -muller tube.

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    unstable
    decay
    Geiger

Explanation

Question 8 of 22

1

Alpha particles—>

Select one of the following:

  • 2 protons + 2 neutrons

  • An electrons which is ejected form the nucleus at a very high speed and formed in the nucleus when a neutron changes into a proton and an electron

  • A type of electromagnetic radiation from the nucleus

  • A neutron

Explanation

Question 9 of 22

1

Beta particle—>

Select one of the following:

  • 2 protons + 2 neutrons

  • An electron which is ejected from the nucleus at a very high speed. Formed inside the nucleus when a neutron changes into a proton and an electron

  • A type of electromagnetic radiation from the nucleus

  • A neutron

Explanation

Question 10 of 22

1

Gamma radiation—>

Select one of the following:

  • 2 protons + 2 nucleus

  • An electron which is ejected from the nucleus at a very high speed. Formed inside the nucleus when a neutron changes into a proton and an electron.

  • A type of electromagnetic radiation from the nucleus

  • Neutron

Explanation

Question 11 of 22

1

Select from the dropdown lists to complete the text.

Nuclear equations- alpha decay, atomic number decreases by ( 2, 4, 1 ) and the mass number by ( 4, 6, 1, 2 )

Explanation

Question 12 of 22

1

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Nuclear equations- Beta decay, the atomic number ( increases, decreases ) by ( 1, 2, 4 ) and the ( mass, atomic ) number doesn’t change

Explanation

Question 13 of 22

1

Half life- the time it takes for the count rate or activity (number of decay per second) from a sample contains the isotope to fall to half its initial level.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 22

1

Radiation cannot be ionising (form charge ions)

Select one of the following:

  • True
  • False

Explanation

Question 15 of 22

1

Fill the blank spaces to complete the text.

is exposing an object to nuclear radiation like which uses radiation.

Explanation

Question 16 of 22

1

Ionising radiation decreases the risk of cancer

Select one of the following:

  • True
  • False

Explanation

Question 17 of 22

1

Precautions when using ionising radiation include...

Select one or more of the following:

  • Shielding- gloves can protect against alpha radiation and beta and gamma radiation can be reduced a lead apron.

  • Monitoring

  • Exposure

Explanation

Question 18 of 22

1

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Alpha radiation is ( strongly, less, weakly ) ionising. It can be stopped by dead skin cells and alpha emitters can be dangerous if inhaled or swallowed.

Explanation

Question 19 of 22

1

Select from the dropdown list to complete the text.

Beta radiation is ( less, strongly, weakly ) ionising. It can penetrate skin.

Explanation

Question 20 of 22

1

Select from the dropdown list to complete the text.

Gamma radiation is ( weakly, less, strongly ) ionising. Can penetrate the body but likely to pass through.

Explanation

Question 21 of 22

1

A tracer must...

Select one or more of the following:

  • Pass out of the body and be detected (gamma or beta)

  • Not be strongly ionising to minimise damage to body tissue (gamma)

  • Not decay into another radioactive isotope

  • Have a short half life so it is not present in the body for too long

Explanation

Question 22 of 22

1

Gamma rays through radiotherapy can pass into the body and destroy a tumour

Select one of the following:

  • True
  • False

Explanation

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