Properties of Period 3 elements and their oxides (A-level only)

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Question 2
Medium

This question is about periodicity, the Period 3 elements and their compounds.

1.

State what is meant by the term periodicity as applied to the elements in the Periodic Table.

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2.

Identify the element in Period 3 with the highest first ionisation energy.

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3.

Identify the element in Period 3 that forms a simple monoatomic cation with the smallest ionic radius. Explain your answer.

  • Element:
  • Explanation:
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4.

The equations for two reactions of aluminium oxide are shown: Al2O3+3H2SO4→Al2(SO4)3+3H2O\text{Al}_2\text{O}_3 + 3\text{H}_2\text{SO}_4 \rightarrow \text{Al}_2(\text{SO}_4)_3 + 3\text{H}_2\text{O}Al2​O3​+3H2​SO4​→Al2​(SO4​)3​+3H2​O Al2O3+2KOH+3H2O→2KAl(OH)4\text{Al}_2\text{O}_3 + 2\text{KOH} + 3\text{H}_2\text{O} \rightarrow 2\text{KAl(OH)}_4Al2​O3​+2KOH+3H2​O→2KAl(OH)4​ Name the property of aluminium oxide that describes its ability to react in these two ways.

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5.

Complete and balance the equation for the oxidation of elemental phosphorus (P4\text{P}_4P4​) by nitric acid. ‾P4+‾HNO3+‾H2O→‾H3PO4+‾NO\underline{\quad}\text{P}_4 + \underline{\quad}\text{HNO}_3 + \underline{\quad}\text{H}_2\text{O} \rightarrow \underline{\quad}\text{H}_3\text{PO}_4 + \underline{\quad}\text{NO}​P4​+​HNO3​+​H2​O→​H3​PO4​+​NO

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Properties of Period 3 elements and their oxides (A-level only) Questions

  1. A Level
  2. /Chemistry
  3. /Properties of Period 3 elements and their oxides (A-level only)