A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

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Question 18
Medium

This question is about titanium and its extraction.

a.

Titanium is a metal. Match each property of titanium to the correct reason for that property.

Properties:

  • Conducts electricity
  • High melting point

Reasons:

  • Titanium has delocalised electrons
  • Titanium has layers of atoms which can slide
  • Titanium has strong metallic bonds
  • Titanium has weak intermolecular forces
  • Titanium has a random arrangement of atoms
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b.

Titanium can be used to make alloys. What is meant by an 'alloy'?

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c.

Rutile is an ore containing titanium dioxide. Rutile contains between 30% and 50% titanium. Pure titanium dioxide always contains 60% titanium. How does this show that rutile is a mixture and not a compound?

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d.

In one stage of titanium extraction, sodium hexafluorotitanate, Na2TiF6\text{Na}_2\text{TiF}_6Na2​TiF6​, is used. Give the total number of atoms in the formula Na2TiF6\text{Na}_2\text{TiF}_6Na2​TiF6​.

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e.

A sample of rutile ore contains 42% titanium. Calculate the maximum mass of titanium that can be extracted from 250,000 kg250,000\text{ kg}250,000 kg of this sample of rutile. Give your answer in standard form.

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A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes Questions

  1. GCSE
  2. /Chemistry
  3. /A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes