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Molecular elements

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Lesson outcome

Waxaan sharxi karaa molecule (molecule) oo sawiri karaa sawirada curiyeyaasha ka kooban molecules.

Introduction

In this lesson: I can describe a molecule and draw pictures of elements made from molecules. Many non-metals are in the gas state at room temperature. Some non-metals form diatomic molecules that contain two atoms (e.g. O₂, N₂, H₂, Cl₂).

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Many non-metals are in the gas state at room temperature. Some non-metals form diatomic molecules that contain two atoms (e.g. O₂, N₂, H₂, Cl₂). Some non-metals are monatomic and do not form molecules. Noble gases are monatomic and are listed in the right-hand column of the periodic table.

Worksheet

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Quizzes

  1. 1. What state of matter has particles held in fixed positions?

    • Liquid
    • Gas
    • Correct answer:Solid

  2. 2. Where are non-metals located on the periodic table?

    • Left side
    • Middle
    • Correct answer:Right side
    • Bottom

  3. 3. Which element's model is described as a ball that cannot be broken

    • Correct answer:Dalton's
    • Newton's
    • Einstein's
    • Bohr's

  4. 4. Elements are considered pure substances because they...

    • are gases at room temperature.
    • can be broken down into simpler substances.
    • Correct answer:consist of only one substance.
    • always react with other elements.

  5. 5. What does it mean when elements react together?

    • they change state
    • they form a mixture
    • Correct answer:they form a new substance
    • they separate into atoms

  1. 1. What is a molecule?

    • a single atom
    • Correct answer:a combination of two or more atoms
    • a type of metal
    • a form of energy

  2. 2. Which of the following is a diatomic molecule?

    • Helium (He)
    • Correct answer:Oxygen (O₂)
    • Neon (Ne)
    • Argon (Ar)

  3. 3. Identify the diatomic molecules.

    • a set of three oval shapes with the same color as the image in the bottom right corner of the pictureN₂O
    • Correct answer:the symbol of hydrogen hydrogen is shown in black and white, with the letter h2 below the symbolH₂
    • Correct answer:a group of purple and green balls floating in the air on top of each other on a white backgroundHCl
    • a structural model of a benzoleum benzoleum is a compound of benzoleum benzoleum benzoleum is a benzoleum is a benzoleumSiO₂

  4. 4. Which gas is monatomic?

    • Oxygen (O₂)
    • Chlorine (Cl₂)
    • Correct answer:Neon (Ne)
    • Hydrogen (H₂)

  5. 5. Which statement about molecules is incorrect?

    • All molecules are made of atoms.
    • Molecules can consist of atoms from different elements.
    • Correct answer:All gases at room temperature are diatomic.
    • Molecules are held together by chemical bonds.

What pupils see

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

  • IntroductionPrepare
  • Starter quizActivate · 5 questions
  • Lesson videoLearn
  • Exit quizCheck · 5 questions
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