Curriculum
Course: Alhussan Chemistry — Stage 7
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Curriculum

Alhussan Chemistry — Stage 7

Chapter 1: The Particle Model and States of Matter

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Chapter 2: Elements, Compounds and Mixtures

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Chapter 3: Metals and Non-Metals

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Chapter 4: Chemical Reactions 1

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Chapter 5: Acids and Alkalis

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Chapter 6: The Earth and Plate Tectonics

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Quiz

2.4 Atoms — Visual & Photo Quiz

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  • Questions count: 2
  • Passing grade: B+
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1.
Look at the high-resolution Scanning Tunnelling Microscope (STM) image showing individual atoms on a crystal surface. What does this microscopic photograph prove?
Dr Dabour Hub Academy - figure 1
Matter is indeed made of distinct, individual atoms packed together
Atoms are visible to the naked human eye under sunlight
All atoms are hollow spheres filled with liquid water
Atoms do not have any mass
2.
Look at John Dalton's historical diagram of atomic models. What was a central postulate of Dalton's atomic theory?
Dr Dabour Hub Academy - figure 2
All atoms of a given element are identical in mass and properties, and cannot be divided
Atoms can turn into other atoms during simple boiling
Atoms are living cells that reproduce by dividing
All elements have identical atoms with the same mass
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Part of Chapter 2: Elements, Compounds and Mixtures — see every lesson and quiz in this unit.
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