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Metallic elements

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Lesson details

Lesson outcome

Waxaan sharxi karaa sifooyinka curiyeyaasha birta ah (metallic elements) oo aan barbardhigi karaa kuwa aan birta ahayn (non-metal elements).

Introduction

In this lesson: I can describe the properties of metal elements and compare them to non-metal elements. Metals are good thermal and electrical conductors, they are strong, shiny, malleable and ductile. Non-metals are normally poor thermal and electrical conductors, they are not strong, and are dull and brittle.

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Metals are good thermal and electrical conductors, they are strong, shiny, malleable and ductile. Non-metals are normally poor thermal and electrical conductors, they are not strong, and are dull and brittle. Graphite is a non-metal that is a good electrical and thermal conductor. Metals are found on the left side and in the middle of the periodic table, non-metals on the right side.

Worksheet

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Quizzes

  1. 1. Which of the following are physical properties of substances?

    • Correct answer:melting and boiling points
    • making new substances when added to water
    • Correct answer:conducting electricity
    • reacting with oxygen
    • Correct answer:being shiny

  2. 2. Which of the following is a pure substance?

    • Fresh orange juice
    • orange squash
    • Correct answer:distilled water

  3. 3. When sodium metal is added to chlorine gas a yellow-orange flame and white solid form. Select what had happened and why.

    • A physical change
    • Correct answer:A chemical change
    • Correct answer:A new substance has formed
    • The same substances are present
    • Correct answer:Sodium and chlorine have reacted

  1. 1. Which of the following properties are most likely associated with metals?

    • Correct answer:Being a good thermal conductor
    • Being brittle
    • Being a poor electrical conductor
    • Correct answer:Being malleable

  2. 2. Graphite is a non-metal. Why is it unique?

    • Correct answer:It is a good thermal and electrical conductor.
    • It is sonorous.
    • It is found on the left side of the periodic table.
    • It is shiny and ductile.

  3. 3. What does 'malleable' mean?

    • Correct answer:It can be easily shaped or bent.
    • It breaks easily.
    • It can conduct electricity.
    • It can be pulled into a wire.

  4. 4. Look at the table below and select which element is most likely to be a metal.

    • Correct answer:Element A
    • Element B
    • Element C

  5. 5. True or false? The elements highlighted in green in this image are all metals.

    • True
    • Correct answer:False
    • hydrogen is a non-metal
    • Correct answer:they are all non-metals

What pupils see

The same lesson as a pupil sees it. You can set any section as work on its own.

  • IntroductionPrepare
  • Starter quizActivate · 3 questions
  • Lesson videoLearn
  • Exit quizCheck · 5 questions
This content is by Cashar and published under an open licence.