Quelpr
2 marksParticles in the Atom

CSEC Physics · 1996 · Paper 2 · Question 3(a)(iii)

Figure 4 shows the structure of a neutral atom of carbon with six protons in its nucleus.

State what Z is known as and give its value.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 3(a)Complete the diagram to show the correct number of electrons in the outer shell of the atom.[1 mark]
  2. 3(a)(i)State the name of the other particles in the nucleus.[1 mark]
  3. 3(a)(ii)The nuclide can be represented by the symbol ^A_Z C. State what A is known as and give its value.[2 marks]
  4. 3(b)(i)On Figure 5, draw the decay curve for 4 g of carbon-14. Label the graph clearly.[2.5 marks]
  5. 3(b)(ii)On Figure 5, draw the decay curve for 4 g of carbon-15. Label the graph clearly.[2.5 marks]
  6. 3(c)(i)Calculate the difference in mass between nuclei of carbon-14 and nitrogen-14.[1 mark]
  7. 3(c)(ii)Determine the energy released when one carbon-14 nucleus decays. (c = 3.00 × 10⁸ m s⁻¹)[3 marks]

More practice: the rest of this paper · more Particles in the Atom questions · all CSEC Physics past papers