Back to quiz

6. Gamma radiation can be stopped by:

  • a cotton cloth soaked in ethanol
  • a sheet of paper
  • a lead block
  • an aluminium sheet

7. What is the range in the air of beta- radiation?

  • a few cm
  • a few km
  • a few m
  • a few mm

8. What type of radiation is used in smoke detectors?

  • alpha
  • delta
  • beta
  • gamma

9. Nuclear fusion is when 2 lighter nuclei fuse together to form what?

  • A single heavier nucleus
  • An electron
  • Half an atom
  • A proton

10. Why is nuclear fusion have to occur at high temperatures and pressures?

  • To make an explosion, so a new element can be formed from the original particles.
  • Because forces in the atmosphere are very high
  • To provide energy needed to force the 2 positive nuclei together.
  • To increase the rate of reaction.

11. What is the order of processes in Mass Spectroscopy?

  • Vaporises, Flight/ Drift Tube, Accelerates, Ionises, Detector, Computer
  • Vaporises, Accelerates, Ionises, Flight/ Drift Tube, Detector, Computer
  • Vaporises, Ionises, Accelerates, Flight/ Drift Tube, Detector, Computer
  • Vaporises, Accelerates, Flight/ Drift Tube, Ionises, Detector, Computer

12. What is the electron configuration for Copper? (Atomic Number is 29)

  • (2, 8, 18, 1)
  • (2, 8, 8, 8, 3)
  • (2, 8, 17, 2)
  • (2, 2, 6, 2, 6, 10, 1)

13. What is the appearance of an Emission Spectrum?

  • Black lines on a grey background
  • Bright (coloured) lines on a black background
  • Black lines on a bright (coloured) background
  • Red lines on a black background

14. 'In line spectra, the lines converge at low frequencies.' True or False?

  • False
  • True

15. 'In Group 2 Hydroxides, the solubility increases down the group.' True or False?

  • True
  • False

16. A Metallic Lattice Structure is held together by what?

  • Ionic bonds
  • Covalent bonds
  • Strong Electrostatic Forces
  • Weak Intermolecular forces

17. An atom in a molecule has 3 groups of electrons around it; what shape does this give?

  • Triangular Bipyramidal
  • Planar Triangular
  • Tetrahedral
  • Linear

18. Silicon Dioxide is what type of structure?

  • Covalent Molecular
  • Ionic Lattice
  • Atomic
  • Covalent Network
  • Metallic Lattice

19. How do you work out the amount of a substance in moles?

  • molar mass/ gravitational potential energy
  • mass / molar mass
  • molar mass/ mass
  • molar mass x mass

20. Nitrogen has how many bonds?

  • 2
  • 3
  • 1