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2 marksRadioactive Emissions

CSEC Physics · January 2017 · Paper 2 · Question 6(c)(ii)

A radioactive element X undergoes a decay process which results in the formation of a new element Y, as shown in the following equation: ²²²₇₆X → ᵖqY + ⁴₂He

Determine the values of p and q.

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Other parts of this question

  1. 6(a)(i)State the names of the components labelled A, B and C.[3 marks]
  2. 6(a)(ii)Using your knowledge from Rutherford's experiment, explain why it was critically important for him to use the substance or element for the component labelled A.[2 marks]
  3. 6(a)(iii)State TWO conclusions from Rutherford's experiment about the model of the atom.[2 marks]
  4. 6(b)(i)Determine the number of neutrons found in ONE atom of silicon.[1 mark]
  5. 6(b)(ii)Using the same standard notation, state a possible isotope of ²⁸₁₄Si.[1 mark]
  6. 6(c)(i)State the type of decay process that occurred.[1 mark]
  7. 6(c)(iii)If element Y then undergoes a beta decay and forms an element Z, write the reaction equation.[2 marks]
  8. 6(c)(iv)How does radioactive decay affect a particle's mass?[1 mark]

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