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5 marksStructure and Formulae

CAPE Chemistry Unit 2 · January 2021 · Paper 2 · Question 4(a)(ii)

Consider the notation of an atom of an unknown element, ²⁹₁₄A.

Draw a labelled diagram to illustrate the location, arrangement and number of EACH type of subatomic particle in Element ²⁹₁₄A.

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Other parts of this question

  1. 4(a)(i)Complete Table 3 which shows the three subatomic particles and their properties.[4 marks]
  2. 4(b)Calculate the number of atoms in 80.0 g of calcium. [Relative atomic mass of Ca = 40; Avogadro's constant 6.0 × 10²³][2 marks]
  3. 4(c)(i)Explain the chemical process that can account for these observations.[3 marks]
  4. 4(c)(ii)State ONE other example that demonstrates this process.[1 mark]

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