AQA Chem 1: Unit 1 Foundation Chemistry

AQA Chemistry Unit 1 Revision Questions.

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1. What does atomic number, (Z) represent?

  • Number of neutrons
  • Number of nucleons
  • Number of protons
  • Number of electrons
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2. What does mass number, (A) represent?

  • Number of protons + Number of neutrons
  • Number of protons + Number of electrons

3. What is the correct definiton for the term isotope?

  • Atoms with the same number of neutrons but different number of protons
  • Atoms with the same number of protons but different number of neutrons
  • Atoms with the same number of neutrons and the same number of protons

4. What is the order of events that happen in the mass spectrometer?

  • Ionisation, Acceleration, Delfection, Detection
  • Acceleration, Deflection, Ionisation, Detection
  • Ionisation, Acceleration, Detection, Deflection
  • Ionisation, Detection, Acceleration, Deflection

5. Is this how an atom,molecule is ionised in the mass spectrometer? An electron gun fires high speed electrons which knocks an electron from atoms/molecules.

  • True
  • False
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Comments

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according to the spec, (A) is mass number not atomic number

Goldengloss

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Oops, sorry about that. Genuine mistake "/ But thank you for pointing that out :)

Molly

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Great quiz!! Works for different boards as well. Thanks :)

:) PurpleJaguar (: - Team GR

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This is really helpful

Thanks a lot :)

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